Gore® Windstopper®
Windstopper® fabrics are constructed by laminating our special membrane to a wide range of functional fabrics selected according to the final product’s intended use. This revolutionary structure is ultra-light, ultra-thin, and highly resistant to extreme temperatures. The microporous structure of the Windstopper® membrane ensures maximum breathability; cold wind is kept out, but moisture vapor can easily escape. Integrated into the ePTFE portion of the membrane is a hydrophobic, or water-hating, substance to keep external moisture away from your skin. This thermoregulating effect keeps you comfortable longer, so you can be at your best. To construct a Windstopper® laminate, the ePTFE membrane is bonded to a wide range of high-performance fabrics. Depending on the application, a variety of outer fabrics and lining materials are used to create 2-, 3- and even 4-layer constructions.
Polartec® Power Stretch®
The fabric is highly breathable and does not restrict the movement of moisture vapor. "Touch Points" on the fabric inner surface draw off the sweat. Sweat is wicked off the skin to the outside of the fabric, where it spreads rapidly for evaporation. When the sweat reaches the outside of the fabric, it spreads out to many times its original surface area, enabling it to dry at least 2 times faster than cotton. The material is wind- and abrasion-resistant and is ideal for next-to-skin use.