Humanized design, the water bottle carrier bag can be removed as your need. Adjustable and removable Waist strap: 60 - 110cm, maximum stretch length: 110cm. Two controllable buckles allow easy access to adjust the belt's length to fit your waist. Built in Reflective strip around the zipper for safe running in low light conditions. Perfect for sporting, traveling, cycling, mountain climbing, walking trip, shopping and more. Two pockets design, slim lightweight with extra storage grid separate your phone and earphones, wallet,cash, coin, keys or any other sharp things keeps your goods secure and protected.