Workout Ready - Our Apple watch Sport Band is built around a minimalist design meant to keep the weight low and ventilation high. Channels in the bottom of the band and full length adjustment holes increase breathability and flexibility. Pin and Tuck Closure - Our Apple watch bands for men and women are finished with a custom-designed pin and tuck closure mechanism that is both slim and secure. The aluminum pin latches through the band while the tail end is tucked away neatly against your wrist. High Performance - We use FKM (fluoroelastomer rubber) on our Apple Watch Sports Band for its excellent balance of comfort and durability. FKM’s natural flexibility allows the band to easily contour around your wrist and its resistance to oils allows it to quickly wipe clean after a workout. Bold 100% Waterproof Design - Our waterproof Apple watch band has a sporty aesthetic and sharp details combine for a distinct, yet understated look unique from any other band. Compatible Model and Wrist Fit - Designed for Apple Watch New Series 11, Ultra 1-3, Series 9, 8, 7, 6, SE, and all previous versions of Apple Watch. If using Ultra, Fits Wrist Sizes from 160mm-195mm. For non-Ultra watches, Fits Wrist Sizes from 160mm-193mm. Designed to give your Apple Watch a modern and sleek, athletic look for intense workouts and everyday wear. Sport Band has a lightweight and breathable design which is constructed from a soft, flexible FKM rubber for all-day comfort. A low-profile pin-and-tuck mechanism ensures a secure closure.