Gore-Tex® has been a leader in premium waterproof fabrics for decades. These fabrics are created by laminating waterproof layers to durable textile fabrics, creating a water and windproof barrier. The outer layer of this membrane is made up of billions of microscopic pores per square inch that are tens of thousands of times smaller than water droplets. This construction allows vapor to pass through the fabric, while keeping any external moisture from entering, making it a perfect material for a variety of outdoor sporting goods.