Pig suede leather and breathable mesh upper 100% recycled laces and webbing Bellows tongue keeps out debris Protective and abrasion resistant rubber heel and toe cap 100% recycled breathable mesh lining Kinetic Fit ADVANCED removable contoured footbed with reinforced heel cushioning for medium support 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 Vibram TC5+ outsole provides exceptional traction for outdoor multi-sport activities, formulated exclusively for Merrell