NIKE Men's Air Max Tailwind+ 4 Running Shoe BLACK/TEAM ORANGE/ANTHRACITE/BLUE GLOW synthetic-and-mesh UPPER: Breathable mesh upper features a Flywire technology midfoot panel, an injected toe-tip and TPU underlays for lightweight, durable support and flexibility. MIDSOLE: Forefoot and heel non-pressurized, articulated Air-Sole units and a soft, yet responsive Cushlon foam deliver plush comfort and a smooth ride. OUTSOLE: BRS 1000 carbon rubber heel with environmentally preferred rubber throughout for durable traction. Flex grooves encourage a smooth transition.