This silicone wristband strap is designed for Whoop 4.0 users, providing a comfortable and secure fit for daily activities and workouts. Made from waterproof silicone, it resists sweat and moisture, making it ideal for intense training sessions. The adjustable design ensures a snug fit on any wrist size, while the soft material enhances comfort for all-day wear. With an easy-to-install and remove mechanism, this strap offers convenience and durability for those looking to upgrade their Whoop 4.0 experience.