Product details:

Soft, breathable, and lightweight, the Sport Loop band 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 fastener strips are laser-welded to the stretchable band for superior durability. Like all Apple Watch bands, you can match this band with any Apple Watch case of the same size.