The men's Choko Standard pants has a waterproof, breathable 400 denier rugged oxford nylon shell with a Teflon protective finish, technically coated for a softer feel. The lining is made of high density "ultra soft" polyester insulation quilted to 100% nylon lining. The Weather-Tec system has an additional waterproof nylon liner with welded seams double knees with poly fleece for extra warmth. It also has adjustable suspenders, and inner storm cuffs.