Each Braided Solo Loop band features a unique, stretchable design that’s ultracomfortable and easy to slip on and off your wrist. Created by weaving 16,000 recycled polyester yarn filaments around ultrathin silicone threads using advanced, precision-braiding machinery, then laser cutting the band to an exact length for a custom fit. The band offers a soft, textured feel and is both sweat and water resistant. Apple Watch Braided Solo Loop Material: 100% post-consumer recycled polyester, 80% recycled stainless steel