Nylon Sports Strap for Whoop 5.0 Biceps Training Band Compatible Size Designed specifically for the Whoop 5.0 biceps training band, this strap fits arm sizes from 210 mm to 400 mm (8 to 16 inches), making it suitable for most users regardless of age or gender. The adjustable design ensures a secure and comfortable fit that can be quickly customized to your arm size. Note: Not compatible with Whoop 4.0. Ushaped frame not included. Device not included. Materials for Comfort and Durability Crafted from quality nylon, this strap offers a balance of softness, durability, and stretch for comfort during allday wear. Its breathable, lightweight fabric keeps your skin cool even during intense workouts. The material is washable, quickdrying, and designed to maintain its shape and flexibility over time. Secure and Easy Installation Featuring a quickfit connection system, installation and removal take only seconds with no tools required. The upgraded connector locks firmly onto your Whoop 5.0 tracker to prevent slipping or loosening, even during intensity movements. Ideal for Active Lifestyles for activities such as hiking, running, and outdoor training, this strap stays securely in place while allowing full freedom of movement. Whether for everyday wear, endurance sports, or gym sessions, it ensures your Whoop 5.0 stays where you need it to track your performance accurately.