The Gore-Tex lining with leather uppers makes the shoe waterproof. Removable, washable insole, and shock absorber in the heel. Provides excellent traction and all day comfort. Air Relax System Uppers are made with the finest full-grain nubuck aniline-dyed leathers for ultimate breathability and durability. Each pair incorporates soft nappa glove leather linings and cut out of one hide to insure color and grain consistency. Speed Lacing D-Rings for quick and simple lacing. It is designed to accommodate every type of foot without pressure or discomfort. 100% Waterproof Gore-Tex lining. A thin Teflon membrane bootie ensures a completely waterproof shoe and boot.