Synthetic/Mesh upper provides lightweight comfort and support ABZORB® cushioning in the forefoot for exceptional shock absorption N-ERGY® in the heel provides NB's most advanced shock absorption and cushioning C-CAP® midsole provides cushioning and support STABILITY WEB® delivers midfoot support and reduces the weight of the shoe N-Durance® rubber compound for maximum outsole durability Solid rubber outsole provides long-wearing durability Molded Upper provides a comfortable fit Medial Post located on inside edge of shoe to help prevent overpronation Air Mesh Environmentally Friendly- 20% recycled materials