It’s reinforced and better than ever. The Propper Foul Weather Trouser II keeps you dry and comfortable with 100% nylon fabric and a GORE-TEX® membrane. Breathable GORE-TEX® fabric remains waterproof in the face of diesel fuel, jet fuel, DEET, petroleum, oils and other types of petroleum. Zippered leg openings with moisture-wicking barriers make dressing and undressing fast and easy. The reinforced seat and knees, cargo pockets and pass-through pockets add durability and space for essentials, and an added flap over the zippered leg opening improves on the previous generation.