The Nike Air Max Tailwind+ 4 running shoe is for the neutral runner who seeks bold, technical design elements; soft cushioning and a versatile style that can be worn with anything. Breathable mesh upper features a Flywire construction midfoot panel, an injected toe-tip and TPU underlays that provide lightweight, durable support and flexibility. Forefoot and heel non-pressurized, articulated Air-Sole units and a soft, yet responsive Cushlon foam deliver plush comfort and a smooth ride. BRS 1000 carbon rubber heel with environmentally preferred rubber throughout gives durable traction. Flex grooves encourage a smooth transition. Removable insole. Wt. 14.6 oz.