Made with compression-molded perforations for breathability. the Nike Sport Band is durable and strong. yet surprisingly soft. It features colourful flakes that create a randomized pattern. making each strap completely unique. The smooth. dense material drapes elegantly across your wrist and feels comfortable next to your skin. An aluminum pin-and-tuck closure gives the pin a fresh matte finish.This strap contains at least 30% recycled fluoroelastomer. with each flake containing at least 66% recycled fluoroelastomer.