Nike Running Slim Waistpack Reflector Unisex Thin Flexible Black Sports Waist Bag Nike Fanny Pack 2.0- has a slim and light design with an expandable pocket and a flexible-adjustable belt that fits your waist well. Nike Slim Waist Bag 2.0 Carry all your essential items with you without any problems with the Nike Slim Waist Bag 2.0. Designed to work with your body as you run, the Nike Slim Waist Pack is snug yet comfortable with an easily adjustable belt. When worn securely around the waist, the belt – can stretch with your body for greater comfort while running and prevents friction and friction-related pain. The contoured design of the belt fits gently against the skin, and its lightweight construction reduces bounce as well as providing advanced comfort. Expandable pocket- can hold small items and keeps them in place, preventing them from moving around and causing distraction. Removing and putting on the belt is easy and simple as there is an easy to release button. Reflective swoosh and zipper panel - provides visibility when running at night and in low light. Product Description Adjustable stretchy waistband - provides a secure and comfortable fit while running. Expanding pocket holds your belongings, including the largest phones, tightly without shaking or leaving any gaps.