Durable nubuck leather and nylon upper. Abrasion resistant rubber rand. Speed hooks lace system. 100% waterproof and breathable GORE-TEX lining. Cushioning polyurethane footbed with a layer of open cell construction for air circulation. Polyurethane midsole with integrated polypropylene board to provide support underneath the entire length of the foot. Danner Gavre outsole with pentagonal lugs for optimal surface contact and heavier outer lugs for superior support when transitioning laterally and side hilling.