Note: Water bottle is not included. Adjustable Size : The running belt with water bottle holder can be adjusted from 25 to 50 inches, Pocket fits most smartphones like the iPhone 12 and the water bottle holder has a maximum capacity of 750 ml / 27 oz. (water bottle is not included). Wear Comfortable : This outdoor running belt has 45 degree angle bottle holder design,it will resolve the weight on your hip make sure no shaking during your sport, and contour to the curves of your body for a comfortable carrying experience. No bounces steady fit, easy one handy access, Perfect for races requiring lightweight and speed. Evenly distributes the weight of your belongings for a bounce-free ride while you run, hike, marathon, or bike. Multi-function Pocket: The fanny pack with water bottle holder has two zipper pockets, separate your valuables reasonably, fits up to 6" screen smartphone phones, like iPhone 12,inner pocket designed perfect for keys,credit cards, ID, keys, paper towel, bars choc, energy gel packs, running accessories to avoid screen scratching,an earphone outlet to enjoy the music while running, along with an anti-theft zipper buckle. Reflective Design: The water bottle holder for hiking adds a reflective strip on the side of the multifunction pocket and buckle.The design will have obvious reflection under the light.It provides you with greater safety when you run at night.