Types of Waterproof Fabrics: Complete Guide to Waterproof Materials

After spending 15 years testing outdoor gear in conditions ranging from Scottish downpours to Pacific Northwest deluges, I've learned that not all "waterproof" fabrics are created equal.

The main types of waterproof fabrics include coated fabrics (PU or PVC treated), laminated fabrics with bonded membranes, tightly woven fabrics with dense construction, and rubber or PVC materials for complete water protection.

Understanding these differences has saved me from soaked gear on hiking trips and helped me choose the right materials for DIY projects.

In this guide, I'll break down each waterproof fabric type, how they're made, what those mm ratings actually mean, and which ones work best for specific applications.

Waterproof vs Water-Resistant vs Water-Repellent

Waterproof means complete protection against water penetration under any condition.

Water-resistant indicates the fabric can withstand light water exposure but will eventually saturate.

Water-repellent fabrics shed water from the surface but aren't designed for prolonged exposure.

These distinctions matter significantly when choosing gear.

I once made the mistake of wearing a water-resistant shell during a three-hour hike in steady rain.

By hour two, I was completely soaked.

Water-resistant fabrics work fine for short commutes or light drizzle, but anything beyond that requires true waterproof construction.

Protection Level	Water Pressure Resistance	Best Use Case	Duration Limit
Water-Repellent	0-1,000 mm	Light mist, short walks	10-15 minutes
Water-Resistant	1,000-5,000 mm	Light rain, urban use	30-60 minutes
Waterproof	5,000+ mm	Heavy rain, storms	Unlimited
Fully Waterproof	10,000+ mm	Extreme conditions	Unlimited

Main Types of Waterproof Fabrics

Waterproof fabrics fall into four primary categories based on how they achieve water protection.

Coated fabrics use chemical treatments applied directly to textile surfaces.

Laminated fabrics bond a separate waterproof membrane between fabric layers.

Tightly woven fabrics rely on thread density and natural water-shedding properties.

Rubber and PVC fabrics provide complete waterproof barriers but sacrifice breathability.

1. Coated Waterproof Fabrics

Coated fabrics start with a base material (nylon or polyester) that receives a waterproofing treatment on one or both sides.

The coating fills the tiny gaps between fibers and creates a continuous water barrier.

Polyurethane (PU) coating is the most common treatment for outdoor gear.

It's flexible, relatively inexpensive, and provides good waterproof protection.

PU-coated fabrics typically range from 5,000 to 10,000 mm waterproof ratings.

I've used PU-coated nylon for tent floors and backpack rain covers.

The protection works well but eventually degrades with UV exposure and flexing.

PVC coating creates a heavier, more durable waterproof barrier.

You'll find it on truck tarps, boat covers, and industrial applications.

PVC is tough stuff but has serious drawbacks: it's heavy, doesn't breathe at all, and contains plasticizers that can break down over time.

Wax coatings represent the oldest waterproof fabric technology.

Waxed cotton has been used for sailing gear and workwear for over a century.

The wax creates a water-repellent surface that works surprisingly well.

However, waxed fabrics require regular re-treatment and lose effectiveness in heavy rain.

Coated Fabric Pros and Cons

• PU Coating Pros: Affordable, flexible, decent durability, widely available
• PU Coating Cons: Degrades with UV exposure, eventually delaminates, limited breathability
• PVC Coating Pros: Extremely durable, inexpensive, completely waterproof
• PVC Coating Cons: Very heavy, no breathability, environmental concerns
• Wax Coating Pros: Classic look, repairable, natural material
• Wax Coating Cons: High maintenance, limited waterproofing, heavy when wet

2. Laminated Waterproof Fabrics

Laminated fabrics represent the gold standard for modern waterproof performance.

These materials bond a thin waterproof membrane between layers of fabric.

The membrane does the waterproof work while the outer and inner layers provide protection and comfort.

ePTFE (expanded polytetrafluoroethylene) membranes revolutionized waterproofing when Gore-Tex introduced them in the 1970s.

ePTFE contains microscopic pores that are 20,000 times smaller than water droplets but 700 times larger than water vapor molecules.

This means liquid water can't penetrate but sweat vapor can escape.

It's the magic behind breathable waterproof fabrics.

Polyurethane membranes offer an alternative to ePTFE.

PU membranes work through monolithic diffusion rather than pores.

Water molecules are driven through the PU material by humidity and temperature differences.

PU membranes cost less than ePTFE and handle oils better.

The downside is typically lower breathability.

Laminated fabrics come in different layer configurations.

2-layer construction bonds the membrane to the outer fabric with a loose hanging liner.

3-layer construction laminates the membrane between outer fabric and a backing material.

2.5-layer uses a printed pattern instead of a full backer to save weight.

Laminated Fabric Pros and Cons

• ePTFE Pros: Excellent breathability, proven durability, industry standard
• ePTFE Cons: Expensive, requires protective layer, vulnerable to contamination
• PU Membrane Pros: Lower cost, oil-resistant, simpler construction
• PU Membrane Cons: Lower breathability, can feel clammy, less durable
• 2-Layer Pros: Comfortable, versatile, good range of motion
• 2-Layer Cons: Heavier, liner can stick to skin, less durable

3. Tightly Woven Waterproof Fabrics

Tightly woven fabrics achieve water resistance through thread density rather than coatings or membranes.

The concept is simple: weave threads so closely that water droplets can't penetrate.

This approach has been used for centuries with natural fibers like cotton and wool.

Ventile is a classic example developed for World War II pilot suits.

It uses long-staple Egyptian cotton woven extremely tightly.

When dry, the fabric breathes well.

When wet, the cotton fibers swell and seal the weave even tighter.

Modern tightly woven synthetics use ultra-fine nylon or polyester threads.

DWR (Durable Water Repellent) treatment helps these fabrics shed water from the surface.

However, tightly woven fabrics alone rarely achieve true waterproof status.

They're excellent for water resistance and work well for light rain gear.

I've found tightly woven jackets perfect for high-output activities where breathability matters more than complete waterproofing.

Tightly Woven Fabric Pros and Cons

• Pros: Natural feel, excellent breathability, no delamination risk, quiet in use
• Cons: Limited waterproof protection, requires DWR treatment, can saturate in heavy rain, heavier than laminates

4. Rubber and PVC Waterproof Fabrics

Rubber and PVC fabrics provide absolute waterproof protection with zero breathability.

These materials create an impermeable barrier that no liquid can penetrate.

Rubberized fabrics use natural or synthetic rubber bonded to a textile backing.

You'll find them on waterproof bags, dry sacks, and protective covers.

Thick PVC-coated polyester creates heavy-duty waterproof material for industrial applications.

Truck tarps, equipment covers, and heavy rain gear typically use this construction.

These fabrics excel when breathability doesn't matter but absolute waterproofing is essential.

I use PVC dry bags for kayaking and equipment protection.

They keep gear completely dry even when submerged.

However, I wouldn't want to hike in PVC clothing - the moisture buildup inside would be unbearable.

Rubber/PVC Fabric Pros and Cons

• Rubber Pros: Completely waterproof, flexible, durable, repairable
• Rubber Cons: Heavy, no breathability, can degrade with UV exposure
• PVC Pros: Inexpensive, extremely durable, completely waterproof, easy to clean
• PVC Cons: Very heavy, no breathability, environmental concerns, stiff when cold

Waterproof Fabric Comparison Table

Fabric Type	Waterproof Rating	Breathability	Durability	Cost	Best For
PU Coated	5,000-10,000 mm	Low	Medium	$	Budget jackets, tents, tarps
PVC Coated	10,000+ mm	None	High	$	Truck tarps, covers, dry bags
ePTFE Laminated	10,000-28,000 mm	High	High	$$$	Technical outerwear, serious outdoor use
PU Membrane	5,000-15,000 mm	Medium	Medium	$$	General outdoor gear, mid-range jackets
Tightly Woven + DWR	1,000-5,000 mm	High	Medium	$$	Light rain, high-output activities
Rubberized	Complete	None	High	$$	Dry bags, marine covers, industrial
Waxed Cotton	2,000-5,000 mm	Low-Medium	Medium	$$	Casual wear, workwear, style focus

How Waterproof Fabrics Are Made?

The manufacturing process varies significantly between fabric types.

Coated fabrics start with plain weave nylon or polyester.

The fabric passes through a coating machine that applies liquid PU or PVC to one or both surfaces.

The coating then cures through heat or chemical reaction.

Quality coated fabrics apply multiple thin layers rather than one thick coat.

This approach maintains flexibility and reduces the risk of cracking.

I've seen cheap coated fabrics crack after just a few months of use.

Quality coatings with proper application last for years.

Lamination Process

Laminated fabrics require more sophisticated manufacturing.

The membrane material (ePTFE or PU) is produced separately in thin sheets.

This membrane gets bonded to face fabric using heat, pressure, and adhesive.

The lamination must be precise - any voids or weak spots become potential leak points.

3-layer laminates bond a backer material simultaneously.

This creates a single integrated fabric that won't delaminate during use.

2-layer laminates leave the membrane exposed on the inside.

A separate loose liner protects the membrane from body oils and abrasion.

DWR Treatment

Durable Water Repellent treatment is applied as the final step for most waterproof fabrics.

DWR causes water to bead up and roll off the surface.

This prevents the outer fabric from becoming saturated.

When face fabric wets out, breathability suffers dramatically.

The wet fabric blocks vapor escape even if the membrane still works.

Traditional DWR treatments used fluorocarbons (PFAS).

These chemicals worked incredibly well but persist indefinitely in the environment.

Most manufacturers are transitioning to PFAS-free alternatives.

The new eco-friendly DWRs work reasonably well but don't match the performance and durability of fluorocarbon treatments.

Waterproof Ratings and Testing Explained

Waterproof ratings are measured in millimeters using the hydrostatic head test.

This test places a water column over the fabric and measures how much pressure the material can withstand before water penetrates.

The rating equals the height of the water column in millimeters.

A 10,000 mm rating means the fabric withstands the pressure of a 10-meter column of water.

To put this in practical terms, a 10,000 mm fabric handles heavy rain without leaking.

Most pressure from rain comes from wind-driven water hitting the fabric.

This rarely exceeds 2,000-3,000 mm of pressure equivalent.

So why do we need 10,000+ mm ratings?

Real-world conditions include kneeling, sitting, shoulder straps, and pack pressure.

These mechanical forces create far more pressure than rain alone.

Waterproof Rating Scale

Rating (mm)	Water Pressure Resistance	Real-World Meaning	Suitable For
0-1,500 mm	Light mist	Water soaks through quickly	Umbrellas, light showers
1,500-5,000 mm	Light rain	Handles short rain exposure	Urban commuting, light hiking
5,000-10,000 mm	Moderate rain	Reliable in rain and snow	General outdoor use, backpacking
10,000-15,000 mm	Heavy rain	Handles storms and wind-driven rain	Serious outdoor adventures
15,000-20,000 mm	Very heavy rain	Virtually waterproof in all conditions	Mountaineering, extreme weather
20,000+ mm	Extreme conditions	Complete protection even under pressure	Technical mountaineering, professional use

After testing dozens of jackets over the years, I've found that 10,000 mm is the sweet spot for most users.

Anything above this offers diminishing returns for typical outdoor activities.

However, if you're carrying a heavy backpack or sitting on wet ground frequently, higher ratings provide valuable insurance.

Breathability Ratings

Breathability is measured in grams of water vapor that pass through a square meter of fabric in 24 hours (g/m/24h).

Higher numbers indicate better breathability.

Entry-level waterproof fabrics might breathe at 3,000-5,000 g/m/24h.

Premium ePTFE membranes can reach 15,000-25,000 g/m/24h or higher.

In my experience, breathability matters more than most people realize.

A completely waterproof but non-breathable jacket will soak you from the inside during activity.

The moisture from your sweat has nowhere to go.

I'd rather have 10,000 mm waterproof with good breathability than 20,000 mm that doesn't breathe at all.

Major Waterproof Technologies and Brands

While fabric types describe construction methods, brand technologies represent proprietary implementations.

Several companies have developed their own waterproof fabric systems.

Gore-Tex

Gore-Tex remains the most recognized name in waterproof fabrics.

W. L. Gore & Associates invented ePTFE membranes and pioneered breathable waterproof technology.

Gore-Tex Pro represents their premium offering with maximum durability and breathability.

Gore-Tex Paclite uses a lighter membrane for packability.

Gore-Tex Active prioritizes breathability for high-output activities.

After a decade of using Gore-Tex jackets, I can attest to their consistent performance.

The technology works as advertised and lasts for years with proper care.

eVent

eVent uses a similar ePTFE membrane but with a key difference.

Their "dry touch" technology allows moisture to escape immediately rather than requiring a humidity gradient.

In practical terms, eVent feels drier during high-output activities.

I've found eVent excellent for skiing and climbing where sweat management is critical.

Proprietary Technologies

Many outdoor brands develop their own waterproof fabrics to reduce costs and differentiate products.

Patagonia's H2No Performance Standard uses PU membranes and DWR treatments.

The North Face's DryVent comes in 2L and 3L versions for different applications.

Columbia's Omni-Tech provides breathable waterproof protection at mid-range prices.

Polartec NeoShell offers excellent air permeability alongside waterproof protection.

These proprietary technologies often provide 80-90% of premium ePTFE performance at 50-70% of the cost.

Technology	Membrane Type	Waterproof Rating	Breathability	Best Use
Gore-Tex Pro	ePTFE	28,000+ mm	Very High	Technical mountaineering
Gore-Tex Paclite	ePTFE	15,000+ mm	High	Lightweight backpacking
eVent DVstorm	ePTFE	20,000+ mm	Very High	High-output activities
Patagonia H2No	PU	10,000-20,000 mm	Medium-High	General outdoor use
DryVent 3L	PU	10,000+ mm	Medium	Urban and light outdoor
Polartec NeoShell	PU	10,000+ mm	High	Active pursuits

Sustainability and Environmental Considerations

The waterproof fabric industry faces significant environmental challenges.

Traditional DWR treatments contained PFAS (per- and polyfluoroalkyl substances).

These "forever chemicals" don't break down in the environment and accumulate in ecosystems and human bodies.

Research has linked PFAS to various health concerns including cancer and immune system effects.

By 2026, most major outdoor brands have committed to phasing out PFAS from their products.

However, the replacement chemistry doesn't perform quite as well.

Eco-friendly DWR treatments need more frequent reapplication.

They also don't bead water as effectively as fluorocarbon versions.

Beyond DWR, waterproof fabrics present other sustainability challenges.

ePTFE is a type of PTFE - essentially Teflon.

Its production involves perfluorooctanoic acid (PFOA), though most manufacturers have phased out this specific chemical.

Pure PU coatings avoid fluorocarbons but are still petroleum-based.

Some brands are experimenting with bio-based waterproof coatings derived from plants.

These show promise but haven't matched the performance of synthetic options yet.

Recycled content is another sustainability consideration.

Many waterproof fabrics now use recycled polyester or nylon.

This reduces waste and demand for virgin petroleum.

However, recycled materials can't be recycled again due to the coatings and laminates.

Choosing the Right Waterproof Fabric

The best waterproof fabric depends entirely on your intended use.

For urban commuting and short hikes, a 5,000-10,000 mm PU-coated jacket provides adequate protection at a reasonable price.

You don't need premium ePTFE for walking to the bus stop in light rain.

For serious backpacking and outdoor adventures, invest in laminated fabrics with 10,000+ mm ratings.

The breathability difference becomes noticeable over long days of activity.

I've learned this lesson the hard way - cheap waterproof gear leaves me wet from sweat even if it keeps rain out.

For high-output activities like skiing and climbing, prioritize breathability alongside waterproofing.

eVent or high-end Gore-Tex will keep you drier than heavier, less breathable alternatives.

For stationary activities like fishing or spectating, breathability matters less.

A PU-coated rain suit works fine and costs significantly less.

For marine applications, go with PVC or rubberized fabrics.

Saltwater degradation destroys many breathable membranes.

The complete waterproof barrier of PVC handles immersion and spray without issues.

Price vs Performance

• Under $50: PU-coated fabrics, basic waterproof protection, limited durability
• $50-150: Entry-level laminates, 5,000-10,000 mm, adequate for casual use
• $150-300: Brand-name technologies, 10,000-20,000 mm, good balance of features
• $300+: Premium ePTFE membranes, maximum performance, professional-grade durability

Caring for Waterproof Fabrics

Proper care dramatically extends the life of waterproof gear.

Always follow the manufacturer's care instructions first.

However, these general guidelines apply to most waterproof fabrics.

Cleaning

Dirty fabrics perform poorly - grime clogs the membrane's pores and interferes with DWR.

Wash waterproof items with technical fabric cleaner.

Avoid regular detergent - it leaves residues that attract water and reduce breathability.

Never use fabric softener on waterproof gear.

Softeners leave a coating that completely defeats DWR treatment.

Machine wash on gentle cycle with warm water.

Tumble dry on low heat if the care label allows.

The heat helps reactivate DWR treatment.

DWR Restoration

When water stops beading on the fabric surface, it's time to restore DWR.

Spray-on treatments work best for spot restoration.

Wash-in treatments provide more comprehensive coverage.

I reapply DWR annually on frequently used items.

After a proper treatment, my older jackets bead water like new.

Restored DWR combined with a functional membrane provides excellent performance even on aged gear.

Storage

Store waterproof gear clean and dry.

Mildew can damage membranes and coatings beyond repair.

Hang jackets rather than folding them.

Creases can create weak points in coatings and delaminate bonded layers over time.

Avoid long-term storage in direct sunlight.

UV radiation breaks down coatings and weakens fabric fibers.

Frequently Asked Questions

Final Recommendations

After testing dozens of waterproof fabrics over 15 years of outdoor activities, I've learned that the "best" option depends entirely on your specific needs.

For most people, a 10,000 mm laminated jacket with a quality PU membrane or entry-level ePTFE offers the best balance of performance, durability, and value.

Don't get sucked into paying for extreme ratings you'll never need.

Remember that breathability matters as much as waterproofness for active use.

A completely waterproof but non-breathable jacket will leave you soaked from sweat during any physical activity.

Finally, take care of your gear and it will take care of you.

Proper cleaning and periodic DWR restoration keep waterproof fabrics performing for years, making even modest investments worthwhile over the long haul.