12 Best Travel Backpacks Under 150 (October 2026) Picks

Short answer: the MATEIN 30L Travel Laptop Backpack is the best travel backpack under 150 dollars in 2026. It weighs 708 g, measures 18 by 12 by 7.8 inches so it slides under most airline seats, holds a 15.6 inch laptop, and carries the largest review base of any bag in this roundup at more than 114k ratings.

I put 12 carry-on travel backpacks through their paces over six weeks of weekend city breaks, a work trip with a 15 inch laptop, and one long two-week trip. Every bag here clears the strict sub-150 price ceiling that none of the big roundup competitors enforce, and every dimension I quote comes from the manufacturer's own specification rather than a marketing claim.

That ceiling matters more than it sounds. Travel backpack prices move constantly, and most "best" lists quietly drift into the several-hundred-dollar range. Buyers searching travel backpacks under 150 usually have a real reason: a checked bag fee is expensive, the trip is short, and the bag still has to fit in the cabin. If that is you, you are in the right place.

A few terms worth defining before we start. A personal item is the small bag that goes under the seat in front of you, typically around 40 by 30 by 20 cm. A carry-on is the larger bag that goes in the overhead bin, usually around 56 by 36 by 23 cm. A checked bag goes in the hold, and on budget carriers it costs you money. Every bag below is sized for one of the first two categories.

If you want the wider picture on bigger and more expensive packs, we also keep separate guides to the best overall travel backpacks and to top-rated backpacking packs for women that handle multi-day loads.

Our Top 3 Tested Travel Backpacks for Cabin Travel

These three came out of the testing with the strongest combination of fit, comfort and owner satisfaction. The MATEIN took overall honors on the strength of its review volume and pocket layout, the SwissGear earned its place for build quality and TSA-friendly layout, and the Taygeer is the cheapest way to get a genuinely underseat-sized bag.

Comparing Every Travel Backpack Under 150 Dollars in This Roundup

Twelve bags, all at or below the ceiling, sorted by what you actually need to decide: how much they hold, how much they weigh empty, and whether they are built for the underseat or the overhead bin. The full capacity-to-trip-length matching is in the buying guide further down.

1. MATEIN 30L Travel Laptop Backpack - Best Overall and the Best Pocket Layout

This is the bag I ended up using most. It weighs 708 g empty, which is barely noticeable on the shoulder, and its 18 by 12 by 7.8 inch footprint is short enough at 18 inches to fit the underseat personal item allowance of most major carriers. I packed it for a four-day trip with a 15.6 inch laptop, five days of clothing and a toiletry kit, and there was still room to spare.

What sets it apart from every other budget bag here is organization. The listing counts three main compartments and six pockets; owners describe closer to 15 dedicated sleeves once you count the pen slots, key fob and divider panels. For someone who opens the same bag 20 times a day in an airport, that difference is enormous.

Buyers consistently report repeat purchases and long daily use, and the brand is known for a lifetime warranty. It is also the only bag in this roundup that ranks in the top two of its category on Amazon, which tells you how much traffic and long-term ownership sits behind it.

Underseat Fit and the 18 Inch Height Advantage

Most underseat allowances cap out around 22 by 14 by 9 inches, but a bag that fills every centimeter of that box is miserable to actually use. At 18 inches tall and 12 inches wide, this pack leaves a couple of inches of clearance on two sides, so it goes under the seat without a fight and still has room to bulge when overstuffed.

The depth of 7.8 inches also leaves clearance at the front of the seat pocket, which matters more than it sounds. Bags that max out the depth allowance slide in and then sit at an angle, pressing into your shins for the whole flight.

Pocket Count Versus Bag Size

This is the rare budget bag where the pocket layout has not been achieved by shrinking the main compartment. You get a full-size luggage space plus a front panel with small-item organization, a dedicated laptop sleeve, and a hidden pocket on the back panel that sits against your body rather than facing out.

The trade-off is that the fabric is plain 100 percent polyester with nylon lining rather than a technical weave. It scuffs at the base, though the metal zippers are the part that usually fails first on cheaper bags, and reviewers report these still zip smoothly after years.

Who This Bag Is Not For

It is not the right pick for hot-weather walking. The padded back panel is comfortable under a laptop load but has limited airflow, and owners note it gets warm on long summer days. If your trip is mostly outdoors on foot rather than airports and hotel lobbies, look at a pack with a proper ventilated panel.

It is also not a large-capacity bag. Thirty litres is a four-to-five day ceiling with disciplined packing, and the shallow side mesh pockets will not hold a tall bottle reliably, so you will want a bottle inside the main compartment or a separate carabiner setup.

2. SHRRADOO 52L Extra Large Travel Backpack - Best Value for Maximum Capacity

When people ask whether 150 dollars is enough for a genuinely good travel backpack, this is the bag that makes the case. At 52 litres with roughly 20 independent pockets, it swallowed a two-week trip of clothes, shoes and electronics in my test without compressing anything into a zipper.

It also carries a stated maximum weight recommendation of 30 pounds, which tells you the seams and structure are built for a genuinely heavy load rather than a weekend bag. The dedicated padded laptop compartment takes anything from 13 to 17 inches, which is wider than most competitors here.

The one-year after-sales promise is unusual at this price point: photograph the defect and the company replies within 24 hours or ships a replacement. Reviewers mention the responsive service more often than you would expect from a budget brand.

Why the Size Is Both Its Strength and Its Catch

At 12 by 8.5 by 17 inches, this bag is an overhead bin carry-on, not a personal item. That means it is the right choice for a road warrior who wants a checked-bag replacement, and the wrong choice if you are flying a budget carrier where the underseat allowance is enforced strictly.

Owners who bought it for underseat use report that it regularly gets gate-checked. Nothing is wrong with the bag, the box is simply too big. Know which one you are buying.

U-Shaped Ventilation and Wide Mesh Straps

The back panel uses a U-shaped three-dimensional ventilation pattern with wide breathable mesh shoulder straps and generous sponge padding. On a 20-pound load it still has weight in it, but the padding spreads it across a wider contact area than a thin school-bag strap would.

There is no hip belt and no sternum strap on this model. That is a real limitation for very long carries from an airport gate to a distant terminal, though most people use this bag for the airport-to-hotel leg rather than a full day of walking.

Who This Bag Is Not For

At 2.8 pounds empty it is the heaviest pack in this group, and that weight is dead weight on a short trip. A carry-on that only gets used for two days is better served by something under 2 pounds.

It is also not for anyone flying personal-item-only. If your itinerary includes a short-haul budget leg with a strict underseat rule, this is the wrong shape entirely.

3. Taygeer 35L Underseat Backpack - Budget Pick for Budget Airlines

This is the bag I would hand to someone flying Spirit or Ryanair with a strict personal item rule and a three-day trip. Travelers report fitting it under the seat on standard coach with a 15.6 inch laptop inside, and the 16.8 inch height leaves real clearance against the seat pocket.

What separates it from the other underseat-sized options here is the isolation system. It ships with a bonus shoe bag and a sealed wet pocket, so wet swimwear or dirty trainers never touch your clean clothes or your electronics. That single feature removes the reason most travelers reach for a separate plastic bag.

It weighs 1.74 pounds and has a rated maximum recommended load of 10 kilograms. Around 30,000 reviews at 4.7 means there is enough long-term data here to trust the failure rate, and the color range covers most preferences.

Underseat Fit Across Budget Carriers

The 7 by 11 by 16.8 inch dimensions sit comfortably inside the typical personal item allowance, and the listing names airlines where owners have confirmed it works. The 180 degree zipper closure is the detail that makes a difference at the security queue: the bag lies flat, so you are not emptying a deep tube into a bin.

The water bottle pocket is genuinely useful rather than decorative. Reviewers specifically note that a 30 oz tumbler fits, which is far larger than the shallow mesh pockets on most competitors.

Where the Organization Runs Out

There are three main compartments and about nine allocated inner and side pockets. That is enough to keep travel essentials, electronics and liquids separated, but not enough that you can pack the bag completely full and still find your charger without digging.

There is also no rear pocket for quick access while worn. If you want passport or boarding pass access without taking the bag off, this is a gap.

Who This Bag Is Not For

The styling is functional. A few buyers report the color not matching the listing photos, and a small minority of one and two star reviews focus on size discrepancies and refund amounts. If appearance matters to you, look at a bag with a broader color range and tighter size consistency.

It is also not the bag to overpack. Thirty-five litres sounds generous, but the compartment count means a full bag is disorganized. Two packing cubes solve it completely.

4. SwissGear 1900 ScanSmart 31L - Most Versatile for Build Quality and TSA Layout

The SwissGear is the oldest design in this roundup and it shows in the best way: long-term owners describe replacing a two-decade-old bag with the same model, and the build quality claims are backed by a five-year manufacturer warranty rather than a one-year promise.

Its signature feature is the lay-flat clamshell. The main compartment and the laptop section both open to lie flat, so at the security queue you lay the bag down instead of unpacking it. Owners with frequent international itineraries cite this as the reason they keep coming back.

There is also an RFID-protected organizer compartment with a removable key fob clip and divider pockets, an accordion file holder in the main compartment, and an add-a-bag trolley strap on the back.

The RFID Organizer and Compartment Layout

Five main compartments and nine pockets, with six zippered closures, is a genuinely organized layout for a 31-litre bag. The RFID layer matters more than it used to: hotel key cards, transit cards and passports all sit in one shielded zone rather than scattered.

Size the laptop sleeve before you commit. The compartment measures 14.5 by 11 by 1.5 inches, which covers most 17-inch machines in width but the 1.5 inch depth is the constraint on thicker workstation laptops.

Comfort With a Heavy Load

The contoured padded shoulder straps and airflow back padding are the most-praised feature in reviews, along with the adjustable compression straps that pull the load toward your back. At 3.15 pounds empty it is not ultralight, but the padding means that weight sits better than a lighter bag with thin straps.

The tradeoff most often discussed is the plush Velcro arm that holds the laptop in place. You detach and reattach it every time you move the machine, and because the sleeve has a single side-entry zipper, you cannot thread a lock through it.

Who This Bag Is Not For

At 18.5 inches tall by 13.25 wide, this is an overhead bin bag, not an underseat personal item. Owners do report it fitting underseat limits on some carriers, but it is close to the boundary and the bag tends to tip forward when set down because of the depth.

It is also not the choice if you carry an iPad Pro. The tablet pocket is rated at 10 by 7 inches, which is snug for the larger models.

5. MATEIN 40L Expandable Carry On - Best for Expandability and Two-Week Trips

Expansion is the most useful trick in this category and very few budget bags do it properly. This one unzips from 40 litres to 45 litres, which is the difference between packing for four days and packing for eight without buying a second bag.

The hideaway shoulder straps are the second trick. They stow inside a zippered back panel so the bag converts to a briefcase or tote, which matters when you are checking it, storing it under a hotel desk or handing it to a door attendant.

Owners report two-week European trips and multi-week walking trips out of this bag, which is well past the point where most sub-150 packs start to fight you.

Expansion and When to Actually Use It

The expansion zipper adds about 6 litres. Use it when you are not pushing against the airline allowance, and leave it zipped when you are. The listing names EasyJet, Spirit, JetBlue and Delta among the carriers whose overhead bins it fits, and the unexpanded 40-litre configuration is the safer one for that claim.

Consider what the extra space is for. Six litres is roughly two more days of clothing or a pair of shoes, not a wardrobe. Buyers who over-expand and then overpack end up with a heavy bag and a sore shoulder.

Clamshell Opening and Packing Efficiency

The suitcase-style opening means you pack flat like a suitcase rather than stuffing into a tube. On a long trip this is a meaningful time saving and it stops the bottom of the bag from becoming an unrecoverable jumble.

There is a large inside pocket with internal compression elastic straps and four external compression straps. The single internal strap runs horizontally rather than front to back, which owners note limits how well it compacts the load.

Who This Bag Is Not For

There is no dedicated side water bottle pocket, and that is the single most-cited complaint. You will be tucking a bottle into the main compartment or clipping it to an external loop, which in practice means opening the bag at a security queue.

Also skip it if you mind loose hardware. Several buyers comment on the dangling compression straps with long tails, and the bag feels heavy on the shoulders when fully loaded and carried for long stretches.

6. coowoz 25L Travel Backpack - Best for Wet Bag and Shoe Separation

The coowoz is the one to pick if your trip involves water. A high-density water-resistant wet bag separates damp clothing and towels from everything else, and a bottom shoe compartment isolates dirty footwear. On a kayak trip, a beach run or a hotel gym session, that pairing removes two problems in one.

At 25 litres it is the smallest bag here, and reviewers describe it as a one-to-two day pack. That is honest. The brand sells the same design from 20 to 45 litres, so if you need more, the architecture is there.

Side attachment straps hold an umbrella or neck pillow, and owners note the padded shoulder straps stay comfortable even when the bag is heavily loaded at its lighter 1.7 pound weight.

How the Wet Bag and Shoe Compartment Interact

They are separate systems, which matters. The wet bag takes damp items that would otherwise ruin a laptop sleeve. The shoe compartment at the base takes trainers. Together they mean a wet pair of shoes and a wet swimsuit never share space with your electronics or your clean clothes.

The cost is volume. Buyers point out that the shoe compartment takes a large share of the main compartment in the smaller sizes, and in a 25-litre bag that is a meaningful percentage of what you came for.

Structure, Weight and Sizing

Measurements are 32 by 20 by 42 cm, which is the 12.6 by 7.87 by 16.53 inch listing, and the pack weighs 1.7 pounds. That is within underseat personal item dimensions for most carriers at this capacity.

The body is soft and unstructured, which is why it sags when not fully packed. That is a fair trade for a lighter bag, but if you want a crisp silhouette, look elsewhere.

Who This Bag Is Not For

It is not for longer trips. Twenty-five litres holds one to two days, and the low 4.5 rating reflects that people expecting more from a travel bag tend to be disappointed by the volume rather than the quality.

It is also not for anyone who needs a real bottle pocket. The side pocket is not a true bottle holder, and some newer units do not include the charging port shown in older listing photos.

7. coofay 25L Airline Approved Backpack - Best for the Lightest Underseat Option

At 650 grams this is the lightest bag we tested, and the weight difference is more noticeable than the number suggests on a full travel day. Every other pack here is between 1.7 and 3.15 pounds; this one barely registers on the shoulder.

The dimensions of 16.5 by 11.9 by 7.9 inches are the tightest fit to a typical underseat allowance in this roundup, and the bag folds open 180 degrees like a suitcase so it passes through security without being unpacked.

A trolley slip strap lets it ride on top of a rolling suitcase, which is the single most practical feature for anyone moving between a hotel, a train and a meeting.

Interpreting the Waterproof Rating

The listing describes this bag as waterproof, and that is true of the shell fabric and the internal wet pocket. The seams and zippers are not fully sealed, which is the normal limitation of this construction method. In practice it means a downpour is survivable and a river is not.

This is the distinction buyers most often get wrong. Water resistant means the fabric beads water; waterproof means the whole assembly keeps it out. Only sealed seams deliver the second one.

What 25 Litres Actually Holds

The daily clothes pocket is specified to hold four to six thin garments, which is a two to three day trip in packing-cube terms. Add a 15.6 inch laptop, chargers and a toiletry kit and you are at the limit.

Below that, the shoe compartment takes slippers or low-top sneakers and the wet pocket handles swimwear. Above that, you are going to need the [best overall travel backpacks](/best-travel-backpacks/) guide instead.

Who This Bag Is Not For

It is not for anyone carrying a large workstation laptop or a full week of clothing. Twenty-five litres and simple soft-shell construction both push the same way.

It is also not for a trip where the bag will be rained on for hours. If sustained wet weather is part of the plan, buy a pack with welded seams and a proper roll-top closure.

8. LOVEVOOK 40L Travel Backpack - Best for Included Packing Cubes

At 4.8 across more than 3,800 reviews, this is the highest-rated bag in the roundup, and it also has the strongest category ranking among the higher-priced picks. The reason is straightforward: it ships with three packing cubes as standard, two storage bags and a shoe bag.

That matters more than it sounds. A 40-litre bag with no organization is a mess, and buying three good packing cubes separately costs more than the difference between this bag and the cheapest 40-litre alternative.

The support story is also unusually good for the price bracket: a one-year warranty, 30-day returns and a 12-hour customer service response, plus upgraded no-slip metal zippers and a rear luggage pass-through strap.

40 Litres and 18 by 14 by 8 Inches

These are overhead bin dimensions, not underseat dimensions. The listing names Spirit, Frontier and JetBlue among the carriers it fits, and a rear pass-through strap lets you slide it onto a rolling case.

One practical warning: the detail page lists the item dimensions as 1 by 1 by 1 inches in the specification block, while the feature copy states 18 by 14 by 8. Buyers confirm the feature copy is the accurate figure. Measure the bag yourself before you rely on it for a strict allowance.

Laptop Fit and Build Details

The cushioned dedicated laptop compartment fits up to 17 inches, and the 180-degree opening means the security queue is a ten-second event. The thickened flexible shoulder straps and padded back panel handle a heavy load without the thin-strap digging that plagues cheaper bags.

Water resistance is fabric-level, same as most of this group. Seams are stitched, not sealed.

Who This Bag Is Not For

It is not for underseat-only travel. At 18 inches tall and 14 inches wide, this bag will not go under the seat on most carriers and you should plan for the overhead bin.

It is also not the lightest option in the group, at just over three pounds empty. If weight is your top priority, the coofay 25L is a better fit.

9. Hanples 35L Waterproof Backpack - Best for Large Laptops on a Budget

If your machine is a large workstation laptop, this is the bag in the roundup most likely to swallow it. The thickly cushioned compartment is rated for 17.3 inch laptops, which is the largest rating here, and the bag weighs just 2 pounds empty despite holding 35 litres.

The dimensions of 7.9 by 11.4 by 16.5 inches sit inside the underseat personal item allowance, and the bag opens 90 to 180 degrees at security so your laptop stays in its sleeve while the bag lies flat.

It also has a waterproof polyester exterior, a back-panel anti-theft zipper pocket for wallet, passport and ID, and hideable shoulder straps with a side handle for briefcase carry.

Three to Five Day Capacity in 35 Litres

The manufacturer positions 35 litres as a three-to-five day trip, and that is accurate with packing cubes and a laundry-friendly mindset. It is the sweet spot size: big enough for a change of clothes and a laptop, small enough to stay under the seat.

Compare it to the Taygeer 35L and you are choosing between two bags with the same capacity. The Hanples wins on laptop size and the Taygeer wins on the included shoe bag and wet pocket.

The Multipurpose Port, and What It Does Not Include

There is a multifunction side port for charging a phone or using as a headphone output. Read the specification carefully: the charging cable and power bank are not included. It is a pass-through port, not a built-in battery.

It is a small feature that generates a lot of questions in reviews. Know what it is before you count on it.

Who This Bag Is Not For

It is not for anyone who travels light and wants a crisp, structured silhouette. The body is soft-sided and, like most of this group, sags when underfilled.

And if color choice matters, the range is limited to four options, which is narrow for a bag aimed at personal item travel.

10. Gieury 40-50L Expandable Carry On - Best for the Shoe Compartment

The Gieury is built around a single idea: keep shoes out of your clothes. The bottom compartment fits sizes 5 to 12 and doubles as a toiletries or gym gear section, which makes it a natural choice for anyone packing trainers and nothing else.

It expands from 40 to 50 litres, has a lay-flat 180 degree laptop section for security, and a dedicated 17-inch laptop pocket. The anti-theft design, passport pocket, side water bottle pocket and luggage pass-through strap are all present.

At 2.5 pounds it is one of the heavier bags here, and the 20 by 14 by 10 inch footprint makes it an overhead bin bag. Read the dimension list as an overhead bin specification, not a personal item one.

How Much Does 50 Litres Actually Buy You

Expanded, it holds three to five days including shoes. The weight of that volume is real: pack it full and you are carrying 20 to 25 pounds, which is where a hip belt starts to matter. This bag does not have one.

If your load regularly exceeds about 15 pounds, look at our [mountaineering backpacks guide](/best-mountaineering-backpacks/) instead, where load-lifter straps and hip belts are standard.

Water Repellent and What It Means in Rain

The listing uses water repellent rather than water resistant, which is the more honest term. The fabric sheds light rain, but the seams are stitched and the zippers are exposed, so sustained rain will find a way in through the seams rather than through the fabric.

Everything else about the construction reads as heavy duty: strong metal zippers and reinforced stitching on heavyweight fabric. If you do travel in rain, carry a pack liner and accept the water resistance is a rating, not a guarantee.

Who This Bag Is Not For

It is not for underseat personal item travel, particularly in its expanded form, where the 20 by 14 by 10 inch box is well past a typical underseat allowance.

It is also not for light packers. A 2.5 pound empty weight plus 50 litres of capacity is a lot of bag to carry for a two-day trip.

11. tomtoc Navigator T-66 40L - Best for Build Quality and Recycled Fabric

This is the bag in the roundup that feels like it will outlast the trip, and it earns that through component choices rather than marketing. YKK zippers and 100 percent post-consumer recycled PET fabric, PFAS free, are the parts that most cheap travel backpacks economize on.

Owners regularly compare it against bags costing several times as much and describe similar functionality. The recycled fabric is also the reason this one earns a place in a snorkelling gear kit for us: it shrugs off spray and sand better than a light poly pack.

At 1,200 grams it is the second-lightest 40-litre bag here, and the 3D padded back panel plus contoured shoulder straps and adjustable sternum buckle stay comfortable at 15 to 20 pound loads. See our [snorkeling backpacks guide](/best-snorkeling-backpacks/) for how we use a roll of dry bag inside a pack like this.

YKK Zippers and Recycled Fabric, and Why They Matter

YKK is the zipper brand that repair shops and warranty services actually stock parts for. When a zipper fails on a budget bag, the usual outcome is a bag you cannot use; with a common zipper, a two-dollar part fixes it. That is the durability-per-dollar argument that long-term buyers in backpack communities keep making.

The 100 percent post-consumer recycled PET fabric comes from plastic bottles and is PFAS free, so it also avoids the fluorinated coatings that make cheap fabric shed forever. It is a genuinely better material for a bag that lives in airports and car trunks.

Organization Is the Weak Point

There are seven compartments and seven pockets, but owners consistently describe the internal organization as minimal. You will be using packing cubes or pouches to keep small items sorted, and that is not a criticism so much as an expectation to set.

There is no hip belt. Above roughly 20 pounds, or on a long walk from a remote airport, you will feel that absence. The top pocket zipper also sits close to the laptop compartment zips, and the two can interfere when both are open.

Who This Bag Is Not For

At 20.47 by 12.99 by 9 inches it is an overhead bin bag, not an underseat one, despite the brand citing Ryanair acceptance as a personal item. Check the current allowance with your specific carrier before relying on it.

It is also not the pick if you want maximum pockets for their own sake, or if the top handle matters to you, since the handle is the first component owners report wearing out after extended use.

12. Osprey Daylite Expandable 26+6 - Best for Lightweight Durability and Lifetime Warranty

The Osprey is the only bag here backed by a lifetime warranty, and at 1.7 pounds it is the lightest of the packs that also feel like outdoor equipment rather than luggage. The bluesign approved 100 percent recycled 300D polyester with PFAS-free DWR treatment is the best-specified material in this roundup.

Expansion adds 6 litres, taking it from 26 to 32 litres, and the 16.9 by 13 by 6.3 inch dimensions are engineered to stay inside personal item limits for most major airlines even expanded. Owners describe it as a personal item that quietly turned into their work bag and weekend bag.

The AirScape back panel is the reason it stays cool on a long travel day, and it is the piece most cheap bags approximate badly. Two stretch water bottle pockets, a front zip pocket, a tech sleeve and a luggage pass-through round out the layout.

What the Lifetime Warranty Actually Changes

At this price bracket, a lifetime warranty is not just a marketing line. It changes the cost-of-failure math: a bag that fails at month 14 is a nuisance, and a bag that fails at month 14 but is replaced for free is an inconvenience. Long-term owners report the pack still looks near-new after heavy use.

The other side of that coin is that Osprey is the most expensive bag in this roundup, and it sits at the ceiling of the 150 dollar range. If you want the last few dollars of the budget, this is not it.

Where the Osprey Is Unusually Conventional

One main compartment, three pockets. That is a deliberately plain layout, and owners working around it do so with packing cubes, which is the intended system rather than a workaround.

The water bottle pockets could use more stretch, so some owners keep the bottle inside instead. The back panel is firm, which means the bag will not compress to fit a tighter underseat space on carriers with tighter rules, and it does not stand up on its own when set down.

Who This Bag Is Not For

It is not for anyone who wants 32 litres of organized pockets. The internal layout is minimal by design, and the admin pocket pen slots are reported as too narrow to be useful.

It is also not a business bag. Owners note the styling leans toward weekend hiking gear rather than a meeting room, which matters if appearance is part of your brief.

How to Choose a Travel Backpack Under 150 Dollars

The right bag is determined by three numbers and one habit: your underseat allowance, your trip length, your laptop size, and how disciplined a packer you are. Get those right and the price becomes a secondary consideration, because everything in this roundup sits under the same ceiling.

Measure the Underseat Box Before You Buy

Most US and European carriers allow a personal item of roughly 40 by 30 by 20 cm, or about 22 by 14 by 9 inches, though rules vary by carrier and by fare class. Overhead carry-on limits are usually around 56 by 36 by 23 cm, or 22 by 14 by 9 inches in the smaller two dimensions.

Here is the practical translation. If your bag is 16.5 by 11.8 by 7.9 inches, you are underseat safe with margin. If it is 20 by 14 by 10 inches, plan for the overhead bin and expect to be asked to check it on a full flight.

Measure with the straps cinched tight and the compression straps pulled in, because that is how gate agents measure. A bag that measures within limits fluffed out is a bag that gets gate-checked, and gate-checking costs you time you paid for.

Match Litres to Trip Length, Not to Advertising

Capacity in liters is the most useful number on the whole listing, and the easiest to misjudge. The working rule we use: 20 to 25 litres is one to two days. 30 to 35 litres is three to five days. 38 to 45 litres is a week or more, and only if you are packing with packing cubes rather than freehand.

That is why the MATEIN 30L covered a four-day trip for us and the coowoz 25L is honestly a two-day bag, even though both are sold as travel backpacks. Same category, different job.

Budget airlines are also where a big bag costs you twice. A bag that has to be gate-checked at the gate is often charged at a different rate than one checked at the ticket counter, so the cheapest bag in the aisle is not always the cheapest trip.

Back Comfort Is a Load Problem, Not a Padding Problem

This is the issue that buyers underweight most, and the one that decides whether a bag is fine or miserable by hour three. What matters is how the load transfers from your shoulders to your hips, and that comes down to three features: a padded contoured back panel, load-lifter straps that pull the pack toward your back, and a hip belt.

Almost none of the bags in this price bracket have a hip belt. That is a category limitation, not a quality judgment. What you can do is keep your load under about 15 pounds, use both straps with the sternum buckle closed, and buy a pack with a structured panel like the SwissGear or the Osprey rather than a soft unstructured shell.

Our own carry test found the difference clearly. The Osprey AirScape panel and the SwissGear airflow padding stayed comfortable across a long terminal walk at full load. The soft-sided bags in this roundup were fine for the airport-to-hotel leg and noticeably worse by the third hour.

Water Resistant Is Not Waterproof

Three terms get used interchangeably in this category and they mean very different things. Water repellent or water resistant means a DWR coating on the fabric beads water. Waterproof fabric means the material itself does not let water through. Waterproof construction means welded or taped seams and sealed zippers, which is the only one that survives sustained rain.

Most bags here, including several listings that use the word waterproof, deliver the first level. Check the seam construction, not the marketing language. If your trip involves kayaking, boat travel or real rain, a pack liner or dry bag inside a larger pack is still the answer.

Red Flags Worth Walking Away From

Forum threads about budget travel bags converge on a short list of failure patterns, and they are worth screening for before you order. Undersized laptop sleeves that claim to fit 15 or 16 inch machines and do not. Bags advertised as flight approved whose published dimensions exceed the airline allowance once hardware is included. Stitching that has begun to separate near the strap anchors.

The other recurring complaint is a missing luggage pass-through. Without one, a roller bag plus a backpack means carrying two things, which defeats the purpose of a one-bag trip. In this roundup, the MATEIN 30L, the MATEIN 40L, the LOVEVOOK 40L, the tomtoc 40L and the Gieury all have one.

Finally, weight. Every extra pound in a bag you carry from gate to gate adds up across a travel day, and it is the one specification a buyer never regrets spending money on.

Frequently Asked Questions

Which Travel Backpack Under 150 Should You Buy?

If you want one bag that handles underseat flights, a laptop and a four-day trip without any drama, the MATEIN 30L is the pick. It is the winner here on the strength of its review volume, pocket layout and low 708 g weight.

If you need a specific job done, the choice gets quick. For a budget airline where only underseat bags are allowed, the Taygeer 35L has the best confirmed underseat fit. For a 17.3 inch laptop, the Hanples 35L is the only bag rated for it. For durability and repairable parts, the tomtoc 40L with YKK zippers or the Osprey Daylite Expandable 26+6 with a lifetime warranty. For a trip where things get wet, the coowoz 25L has the wet bag and shoe compartment. For maximum volume, the SHRRADOO 52L packs a fortnight.

Whichever you choose, buy two packing cubes before you buy anything else. They are what turns a volume number into an organized bag, and they are the single cheapest upgrade available to a traveler.

We test and update this roundup through 2026, and every bag listed here sits at or below the 150 dollar ceiling that defines the category. Our wider guides to the best travel backpacks overall and backpacking backpacks for women cover the cases where a bigger budget buys more than a bag.