4.0 Saved By the Butter Pack spring Engineered with an ultra-soft backing

Engineered with an ultra-soft backing and microfilament yarn for enhanced comfort and durability—so you can stay in the zone with zero distractions

these bands are yours for the picking

SuperKnit was engineered with an ultra-soft backing and micro filament yarn for enhanced comfort and durability

*IP68 dust-proof and water-resistant up to 1 meter for 2 hours

3 fewer beats per minute)

4.0 Saved By the Butter Pack spring Engineered with an ultra-soft backingGet it while it's hot. The extra buttery new band brings the fun to high intensity days and recovery days. Designed in collaboration with the Buttery Bros, its colorful and full of personality, just like the iconic duo. Slide on the first of its kind, butter inspired translucent battery to complete the look. To charge your WHOOP 4. 0, simply slide the battery pack on your device to charge on the go. Use the included USB cable to recharge your battery