GORE-TEX: The GORE-TEX membrane blocks moisture from the outside, while allowing moisture inside to evaporate. GORE-TEX has over 9 billion pores per square inch that prevent water from getting to your feet while allowing sweat vapor to pass right through, keeping your feet dry and comfortable in all conditions.. Fabric/Material: Air Mesh. 

Waterproof: GORE-TEX with Extended Comfort Technology.