The GORE-TEX® Membrane

The heart of all our products

The pores are 700 times larger than a water vapor molecule which means perspiration passes right through. This is what makes the GORE-TEX® membrane breathable.

The microscopic pores of the membrane are 20,000 times smaller than a water droplet, which means that no rain can penetrate it. This is what makes the GORE-TEX® membrane waterproof.

The membrane's structure is similar to that of a hedge. The wind is caught up entirely in the branching and thus averted from the body. This is what makes the GORE-TEX® membrane windproof.

The GORE-TEX® membrane has over 9 billion pores per square inch. It's these pores that give GORE-TEX® fabric its waterproof, windproof, and breathable characteristics.

Waterproof

Wet fabrics rob your body of warmth. GORE-TEX® fabrics are durably waterproof, allowing you to stay dry and enjoy your activity in comfort.

Non waterproof alternatives
Durably waterproof

What does it mean?

We believe waterproof products shouldn't leak - and, what is more, that this quality is retained over the entire lifetime of the product. The durability of waterproofness is really what sets GORE-TEX® products apart. GORE-TEX® fabrics withstand water-entry pressures encountered during severe weather and in demanding applications. However, a product’s waterproof protection depends on more than just the fabric. That's why all new GORE-TEX® product prototypes from our manufacturing partners are put though a battery of tests in our labs. Only if they meet our strict weatherproof performance standards are they approved for production in a Gore certified factory.

Why is it important?

Wet fabrics conduct heat 3 times faster than dry clothes, robbing your body of warmth. By keeping water out, our durably waterproof clothing system prevents this heat loss. As a result, you stay dry and comfortable, even during extended use, and in harsh conditions.
 

Windproof

Windproof outerwear preserves your microclimate and keeps you comfortable.

Truly windproof
Non windproof alternatives

What does it mean?

Although textiles like microfibers, closely woven fabrics, and many fleece materials are often considered windproof, even light winds can penetrate most of these fabrics, making you feel chilled and uncomfortable. In technical terms, a fabric can only be considered truly windproof if its air permeability is 1.0 cfm (volume of air that passes through one cubic foot of fabric in one minute) or less. All GORE-TEX® products meet or exceed this standard.

Why is it important?

As cold wind blows through your clothes, it causes convective heat loss, robbing you of the warmth kept in the thin layer of air between you and your clothing. GORE-TEX® fabrics prevent this windchill from happening by stopping the wind from passing through. The result – you preserve a comfortable microclimate inside your gear.

Breathable

GORE-TEX® fabrics allow sweat to pass through and help reduce overheating and perspiration buildup.

Highly breathable
Non breathable alternatives

What does it mean?

“Breathability” is one of the outdoor industry's most misunderstood terms. It is not, as many believe, about a fabric's ability to let air move through it, rather it refers to how well it lets your sweat escape in the form of moisture vapor. Our standards require that during heavy exertion our fabrics must breathe well enough to allow sweat to evaporate easily.

Why is it important?

When you're active, your skin removes excess heat via perspiration. To avoid uncomfortable sweat buildup, the GORE-TEX® membrane allows the evaporating moisture to escape through the fabric. This breathability leads to more comfortable and drier skin, even during high exertion.

 

The Promise – a video series

Ever wondered what GORE-TEX® fabrics is all about? Gordon and Ted are taking GORE-TEX® products to the test. Watch our PROMISE series.

Waterproof

Episode 1: Wizards of Water

Windproof

Episode 2: Bubble Trouble

Breathable

Episode 3: Masters of Moisture

The GORE-TEX® Laminate

The GORE-TEX® membrane itself is only 0.01 millimeter thick. Therefore we bond it between high-performance lining and shell textiles, creating the GORE-TEX® laminate.