The Adjustable Elastic Nylon Braided Solo Loop For Apple watch band designed with strong, stretchy elastic fabric strap, all of them make the band secure and fit perfectly snugly around the wrist. Buckle which is super easy to adjust with on and off and more comfortable to wear on your hands
For the sizes of series 7, the 38/40mm bands are compatible with 41mm and the 42/44mm bands are compatible with 45mm watch.