The Moab 3 GTX features a GORE-TEX waterproof membrane to keep your feet dry while still allowing your feet to breathe, a new more supportive insole, a softer more cushioned midsole, and a best-in-class TC5+ Vibram outsole provides exceptional traction for outdoor multi-sport activities. Our newest generation is the most environmentally friendly Moab ever, utilizing recycled materials in construction. 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 provides durable shock absorption to help reduce torque and allow for a smooth transition into the midfoot.