It's the next-gen of VaporMax. Made with at least 40% recycled content by weight, the Nike Air VaporMax 2021 FK defines innovative comfort. Super stretchy and supportive Flyknit fabric feels like wearing a sock, plus VaporMax Air from heel to toe gives you ultra-lightweight bounce. Flex into the future with Nike and feel the good vibes. Features: Stretchy and supportive Flyknit upper creates a striking visual that's seamless, breathable, and as light as air. One big Nike Air unit from heel to toe for super lightweight and flexible cushioning. Made with at least 40% recycled content by weight. The bottom includes some Nike Grind material made from scraps from the footwear manufacturing process. Details: Classic laces. Heel pull tab. Upper: Flyknit. Midsole: Nike Air. Sole: Rubber with Nike Grind. Color: Anthracite/Black/Black/Anthracite.