GORE-TEX® waterproof membrane, exceptional breathability and waterproof performance, 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, Protective and abrasion resistant rubber heel and toe cap.