'+ Knit upper + 100% recycled laces and webbing + 100% recycled mesh lining + 50% Recycled EVA Footbed, 100% Recycled Footbed Cover + Molded nylon arch shank + Merrell Air Cushion in the heel absorbs shock and adds stability + Rock plate for protection + 10% recycled EVA foam midsole + Merrell mountain-grade Quantum Grip™ rubber outsole + Lug Depth: 4.0mm