Waterproof full-grain leather upper provides extra strength, instant comfort, and protection from water. Breathable GORE-TEX® waterproof membrane lining. Removable full-cushion insole, lightweight and tough Polyurethane midsole, and a lightweight nylon shank. Permanent direct-attach construction seals out water. Wolverine Multishox® Vibram rubber lug outsole provides shock absorption and maximum traction and performance.