The Apple 40mm Sport Loop Band for 40 & 38mm Watch Cases, All Series. Black version, Mostly black color design with multi-color detailed weaving.

Soft, 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.
Model Number: MTLT2AM/A