Waterproof coated leather and mesh upper, Bellows tongue keeps out debris, Protective and abrasion resistant rubber heel and toe cap, Breathable mesh lining, Mesh footbed cover and molded nylon arch shank, Cleansport NXT treated for natural odor control, COMFORTBASE removable contoured footbed cradles your foot in all day comfort, Merrell Air Cushion in the heel absorbs shock and adds stability, Super Rebound Compound midsole provides durable shock absorption to help reduce torque and allow for a smooth transition into the midfoot, Vibram TC5+ outsole provides exceptional traction,