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. Band Size One Size (Fits Most)Band fits 130- to 200-millimetre wrists. Works with most versions of Apple Watch. CompatibilityYou can match most bands with any Apple Watch Series 3 or later case of the same size. 40-mm, 41-mm and 42 mm bands are all compatible with 40-mm, 41-mm and 42-mm case sizes. 44-mm, 45-mm, 46-mm and 49-mm bands are all compatible with 44-mm, 45-mm, 46-mm and 49-mm case sizes. Apple Watch ModelsApple Watch Ultra 2Apple Watch UltraApple Watch Series 10Apple Watch Series 9Apple Watch Series 8Apple Watch Series 7Apple Watch Series 6Apple Watch SEApple Watch Series 5Apple Watch Series 4Apple Watch Series 3Apple Watch Series 2Apple Watch Series 1Apple Watch 1st generation