100% Nylon 70D Upper Leg, Cordura 1000D Inner Leg And Boot Imported Fabric Performance: Waterproof, Breathable, Abrasion-Resistant, Windproof, Laminated Construction Durable, waterproof and breathable Abrasion Resistant Cordura Inner Leg and Boot Larger Circumference Accommodates Plastic Boots Lightweight and Durable Bio Thane Instep Strap