Experience seamless compatibility with your Whoop 4.0, thanks to a design specifically engineered for a flawless fit. The innovative one-piece elastic band features a convenient D-ring buckle, allowing for effortless adjustments and dependable fastening, ensuring your device stays securely in place. Crafted from high-quality polyester, this band strikes the perfect balance between flexibility and durability, making it an ideal choice for daily wear. Its adjustable design accommodates a wide range of wrist sizes, fitting comfortably from 150mm to 290mm, so you can find the perfect fit for your lifestyle. Lightweight and designed for all-day comfort, this band provides a barely-there feel, allowing you to focus on your activities without any distractions. Enhance your Whoop experience with this essential accessory that combines functionality and style.