step. The flexible Flyknit sock sits directly on the sole to eliminate extraneous layers and keep the sneakerhead game strong. Cushioning: absorbs impact and distributes weight for consistent, buoyant comfort under each step Lace-up style Flyknit upper wraps your foot like a sock for a natural, snug fit that flexes with every movement Strategic engineering creates contoured cushioning that sits directly underfoot and flexes with each stride VaporMax Air unit eliminates extraneous layers in the sole and provides full-length, gravity-defying cushioning Textile and synthetic upper and lining/rubber and synthetic sole Imported