Keep warm and dry! Our Carhartt WB187 waterproof breathable waist overall is made of durable nylon with a special water-repellent finish. It includes a breathable membrane that allows body heat to leave the garment as it keeps rain and moisture out. Lined with mesh and nylon from the knee down, our waist overall features chap-style double fronts with cleanout bottoms that can accommodate knee pads. The flat front waistband with elastic back and hook-and-loop side adjusters ensure a great fit.