NEXT GENERATION 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 us and feel the good vibes. Flyknit Feels Nike Flyknit technology uses strong (yet lightweight) yarns to create a knit fabric that feels supportive, stretchy and breathable. Everything Air VaporMax 2020 Air evolves from multiple Air units into one big bubble from heel to toe, for super-lightweight and flexible cushioning.The bottom includes some Nike Grind material that's made from scraps from the footwear manufacturing process. Look Good, Feel Good Wear these ultra-comfy shoes knowing you own kicks that can claim they're made with at least 40% recycled content by weight.Now that's a good look. Product Details * Heel pull tab