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; Cleansport NXT treated for natural odor control; COMFORTBASE removable contoured footbed cradles your foot in all day comfort; Molded nylon arch shank; 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