SuperKnit is our signature knit band, engineered for versatile comfort and style. From the gym, to work, to your evening plans, this band is fit for any moment. Includes a Band, Hook, Clasp, and Fast Link(TM) slider that makes swapping bands easier than ever. Compatible with WHOOP One and WHOOP Peak- membership not included. DESIGN: OUR SIGNATURE KNIT BAND: SuperKnit is designed to keep up with your busy schedule-from your high-intensity workouts to your evening plans DESIGNED FOR ULTIMATE COMFORT: SuperKnit is made with an ultra-soft backing and microfilament yarn that moves with you. With a completely adjustable band, you can easily tighten or loosen SuperKnit to find your perfect fit SWITCH UP YOUR STYLE: With our widest color selection and premium stainless steel components, match your SuperKnit to your personal style-made easy with Fast Link(TM) technology BUILT TO LAST: SuperKnit is engineered with premium materials, so that you can stay secure, comfortable, and stylish for years to come