Constructed from at least 40% recycled materials by weight, the Air Vapor Max 2021 FK features stretchy, recycled Flyknit fabric and a soft collar designed to sculpt the ankle. The design includes a stitched-on Swoosh, a recycled TPU heel clip, and soft Vapor Max cushioning. recycled Flyknit soft collar stitched-on Swoosh recycled tpu heel clip vapormax cushioning
