Design: Waterproof membrane seals out water and lets moisture escape for all-day, breathable protection Waterproof suede leather upper Metal hook with traditional lace closure for a secure fit 100% recycled laces and webbing Bellows tongue comfortably protects the foot from debris External rear sling locks in the heel Molded nylon arch shank adds support and stability In-Shoe Comfort: Merrell(R) Air Cushion in the heel absorbs shock and adds stability 100% recycled breathable mesh lining 100% recycled mesh footbed cover 50% recycled removable EVA foam footbed Durability & Traction: Merrell(R) sticky rubber outsole with durable traction that grips when and where you need it Additional Details: Cleansport NXT(TM) treated for natural odor control