• Designed specifically for Whoop 4.0 fitness trackers, ensuring a perfect fit and optimal performance. • Crafted from a blend of polyester, nylon, and spandex with zinc alloy components for durability and comfort. • With a wrist circumference range of 150mm–232mm, this band accommodates a variety of wrist sizes for personalized comfort. • Weighing only 13.6g, this band offers a barely-there feel for all-day comfort during activities and sleep. • The strap is easy to install and remove, allowing your device to have a refreshed look. Specifications: • Material: Polyester, Nylon, Spandex, Zinc Alloy • Dimensions: 232mm x 25mm • Wrist Circumference: 150mm – 232mm • Weight: 13.6g Compatible with: • WHOOP 4.0 Package included: • 1 x Wrist Strap