Joe Rocket: Developed for and proven in the most extreme conditions possible. This is ROCKET! Water-resistant treated Rock Tex™ 450 outer shell. Two-stage adjustable knee armor height. C.E. approved knee and hip armor. Heavy-duty waterproof YKK® zippers on the lower legs and main front fly. Removable insulated liner. Variable Flow™ ventilation front and back thighs. Side seam lower leg zippers. Sure Fit™ adjustable waist. Adjustable back leg elastic to customize the fit and secure knee armor. Two zipper cargo pockets, two back zip pockets. Melt-resistant material on lower leg area. Reflective logos and stripes.