Performance running heritage goes green! Made from at least 40% recycled material by weight, the Nike Air VaporMax Flyknit 2021 is airy and easy-to-wear. Originally designed for running, this Nike Air features a super stretchy recycled FlyKnit, a soft, seamless collar that sculpts your ankle, and the 1st one-piece Air unit that runs the entire length of the shoe. The FlyKnit upper is made from post-industrial recycled yarn and offers a lightweight, seamless, breathable feel while the recycled TPU heel clip adds heritage styling to the sneaker. Its classic-meets-modern construction is evident in the traditional lacing system flattered by the modern webbing eyelets. Nike Air VaporMax Flyknit 2021 features: Regrind rubber details provide traction and durability. The lacing system provides ease of entry and the padding on the heel adds to the comfort. The Air unit provides cushioning and allows for smoother transitions. The recycled rubber on the sole adds durability and traction. The Pinwheel logo and volt-colored, recycled insole feels extra-cushy and signifies sustainable construction.