The perfect accessory for Active Sports, Paddle Boarding, Running, Biking and Swimming to use with the DryCASE. Stretchy Neoprene Velcro fits almost any size waist. Waterproof, Comfortable and Secure.Simple slip the waistband on like a belt, attach through the back of the DryCASE and enjoy your favorite sport while enjoying music. Great for Stand Up Paddling, Running, Swimming, Biking or anything else. You won't even know the waistband is on it's so comfortable. It's the best option for staying low profile and still having your music without hurting your performance.