The Apple Watch Sport Loop band was woven from nylon thread to create a hook-and-loop closure. These bands were available for the 41 mm and 45 mm Apple Watch models, and were offered in sizes to fit 130–200 mm wrists (41 mm) and 145–220 mm wrists (45 mm). This band is the much rarer XL size, offered only in the 45 mm size to fit 170–245 mm wrists.
This Blue Jay/Abyss Blue band used a two-stripe design first introduced in Fall 2021. One stripe was “Blue Jay,” a shade of bright blue, and the other was a darker “Abyss Blue,” with edges in a shade of bright orange. The connector plastics matched the “Blue Jay” shade of blue, and the closure plastic was orange to match the thread color of the edges.
Apple described the Apple Watch Sport Loop band:
“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.”