Description45mm (PRODUCT)RED Sport LoopOverviewSoft, breathable, and lightweight, the Sport Loop features a hook-and-loop fastener for quick and easy adjustment. The double-layer nylon weave has dense loops on the skin side that provide soft cushioning while allowing moisture to escape. On the reverse side, the attachment loops are securely anchored for superior durability.Material: Woven nylonCompatibilityApple Watch Models44mm45mm46mm49mm