Compatible Models Designed for Fitbit Sense 2, Sense, Versa 4, and Versa 3. Suitable for both men and women. Please note: This listing includes the replacement band only; the watch is not included. Our products are built to standards and supported by reliable 24hour customer service. SkinFriendly Material Crafted from soft, breathable, and flexible nylon fabric, this band offers allday comfort without irritation. Ideal for those with silicone allergies, it allows comfortable wear even while sleeping, making it easy to track your sleep cycles without discomfort. Elasticity and Washable The band features elasticity and strong wear resistance, making it for workouts, running, or everyday activities. It can be worn as a wristband or armband and is designed to withstand friction during exercise. If the strap becomes dirty, simply wash with mild soap and let it dry for quick and easy maintenance. Adjustable Size and Secure Fit Equipped with a stainless steel buckle, the band fits wrist sizes from 4.5 inches to 9.5 inches (114 mm to 241 mm). The fit is snug yet comfortable, ensuring the watch stays secure. The precisely engineered latch connects seamlessly with your Fitbit Sense, Sense 2, Versa 3, or Versa 4, preventing accidental drops. Use Scenarios 1. Wear during workouts or sports for a secure, breathable fit that can handle sweat and movement. 2. Keep on while sleeping to comfortably track overnight health metrics. 3. Use for daily wear at work, home, or outdoors with a material that stays comfortable all day.