The Apple Watch Strap 42/44/45/49mm is a Medium size (155 mm).
The new Hera Braided fabric bracelet for Apple Watch is one of the most comfortable and convenient straps on the market. It is made from high-quality elastic fabric that "wraps" around your wrist, with no fear of it coming undone. It comes with integrated magnetic parts for compatibility with the Apple Watch. Lightweight and comfortable on the wrist, you'll feel like you're not wearing anything at all!