The Crossbody Strap is designed to attach to select Apple cases for a convenient and hands-free way to wear iPhone. Beautifully crafted from 100 percent recycled PET yarns, the smooth, narrow woven straps drape comfortably across the body. Embedded flexible magnets with stainless steel sliding mechanisms allow you to effortlessly adjust the length for the perfect fit, while keeping both straps securely and neatly aligned. Compatible iPhone Air cases: Compatible iPhone 17 cases: Compatible iPhone 17 Pro and iPhone 17 Pro Max cases: Maximum strap length: 81.9 inches (2080 mm) Minimum strap length: 42.5 inches (1080 mm) Crossbody Strap