Premium Design: This running belt bag features three zippered pockets and can be unfolded to serve as a water bottle holder (bottles not included). It can hold up to a 750ml bottle. If you don't need to carry a water bottle, you can store it away. The adjustable, bounce-free belt fits waist sizes from 23 inches (58 cm) to 51 inches (130 cm).Comfortable and durable: The running belt is made of high-quality, breathable, waterproof fabric, which effectively protects your phone from sweat and rain. The reflective strip on the pocket ensures your safety at night. It's also lightweight and durable, made for heavy use. The headphone jack design allows you to enjoy music while exercising.Large capacity: The fanny pack features three zippered pockets that provide ample and secure space for your phone, house or car keys, ID/credit cards, cash, earphones, and other accessories while you exercise. It can accommodate phones up to 6.5 inches (16.5 cm), even with an Otterbox case, and the zippers prevent your phone from falling out during intense workouts.Multi-purpose for all activities: the fanny pack is not only for running, exercise, the gym, high-intensity workouts, fitness, walking, jogging, but also excellent for cycling, hiking, fishing, mountaineering,Camping, travel, everyday leisure, etc. It will be the perfect companion for all activities.