•【Versatile Compatibility】Designed specifically for Whoop 4.0, ensuring a perfect fit and seamless integration with your device. •【Comfortable Elastic Design】Features a one-piece elastic band with a D-ring buckle for easy adjustment and secure fastening. •【Premium Materials】Crafted from durable polyester, offering both flexibility and strength. •【Adjustable Fit】Accommodates a wide range of wrist sizes from 150mm to 290mm, ensuring a comfortable fit for most users. •【Lightweight Comfort】With a light weight, this band provides a barely-there feel for all-day wear. Specifications: •Material: Polyester and PC •Dimensions: 290mm x 22mm •Wrist Circumference Range: 150mm - 290mm •Weight: 11.3g Compatible with: •WHOOP 4.0 Package included: •1 x Watch Strap •Not included other items