Supportive, stretchy Flyknit upper is breathable and lightweight Stitched Swooshes and plastic heel clip add iconic visual appeal Seamless sculpt collar with heel padding Lace closure secures the fit 1-piece VaporMax Air unit for lightweight cushioning Nike Grind recycled rubber outsole Built with a stretchy Flyknit upper, the Nike Women’s Air VaporMax 2021 Flyknit is all about the lightweight, airy comfort. A full-length VaporMax unit provides seamless transitions and heel-to-toe comfort, while vibrant stitched Swooshes keep you rooted in everything Nike. Product Code: DX2355-001