100% recycled pigskin and mesh upper, 100% recycled laces and strap. Gusseted tongue keeps debris out. Protective toe cap 100% recycled mesh lining. Kinetic cut. Advanced removable contoured footbed with reinforced cushioning for medium support. Molded nylon arch shank. The Merrell air cushion in the heel absorbs shock and adds stability. Lightweight EVA foam midsole for stability and comfort. Vibram TC5+ rubber sole Block Heel Lace-up closure Rubber sole Moab 3 Lightweight Closed toe.