Carhartt Company Gear Collection Waterproof breathable and wind-resistant nylon, midweight Full-leg two-way zippers Double-front Carhartt's waterproof breathable pant works as hard as you do, made of a durable waterproof breathable and wind-resistant nylon outer shell, it features a polyester mesh lining from knee down and full-leg two-way zippers with double storm channel flaps, it also has a chap-style double-front with cleanout bottoms that can accommodate knee pads.