Color: 2A Description: Durable, breathable replacement nylon loop bands designed for compatibility with WHOOP 4.0 fitness tracker. Lightweight and easy to attach, the bands provide a secure fit for daily wear and active use. No device included. Key benefits: Secure, comfortable fit: Soft nylon construction and adjustable sizing keep the tracker in place without slipping or loosening during activity. Breathable and washable: Lightweight woven nylon allows airflow during exercise and can be washed to stay clean. Easy to attach and wear: Simple attachment design makes swapping bands quick and hassle while keeping the tracker stable. Versatile for daily use and sports: Designed for a balance of comfort and durability for a range of activities. Features and specifications: Compatibility: Compatible with WHOOP 4.0 fitness tracker. Pack contents: 2 nylon loop bands with bumper case included. No device included. Color: 2A Material: Soft, woven nylon for comfort and breathability. Size: Fits wrists 5.5 to 8.7 inches. Strap lengths: long 210 mm, short 120 mm. Practical use scenarios: Running and gym workouts: Breathable design reduces sweat buildup while keeping the tracker secure. Swimming and water activities: Nylon dries quickly after exposure to water and is suitable for use during swims. Travel and outdoor adventures: Lightweight and low profile for comfortable all day wear during hiking, climbing, or travel. What you get: Two replacement nylon loop bands compatible with WHOOP 4.0 and a bumper case. No fitness tracker included.