Waterproof Nylon Upper with Wicking mesh lining. 200 grams Thinsulate™ Insulation. Removable Comfort Cushion insoles. Tough, lightweight polyurethane midsole with protective TPU toe bumper. Direct injected construction for instant strength and comfort. Exclusive Vibram outsole that guarantees maximum traction on a variety of terrains including wet and cold surfaces. CSA Grade 1 Approved. Steel Toe and plate.