Charging Tip: The mesh band must be removed from the WHOOP device. This allows the battery pack to slide fully and securely onto the sensor's rails, maintaining a stable connection for efficient power transfer without interference from the metal frame. Perfect Fit for WHOOP 5.0 Designed specifically for WHOOP 5.0 devices. Premium Metal Build Made from stainless steel for durability and a luxurious feel. Magnetic Adjustable Closure A strong magnet ensures a secure and customizable fit for all wrist sizes. Breathable Mesh Design Lightweight and comfortable for all-day wear, at the gym, in the office, or during sleep