Description45mm Bright Crimson/Gym Red Nike Sport BandOverviewMade from a custom high-performance fluoroelastomer with compression-molded perforations for breathability, the Nike Sport Band is durable and strong, yet surprisingly soft. The smooth, dense material drapes elegantly across your wrist and feels comfortable next to your skin. An innovative pin-and-tuck closure ensures a clean fit.Material: FluoroelastomerCompatibilityApple Watch Models44mm45mm46mm49mm