Cocoly Multifunctional Waterproof Waist Pack with Water Bottle Holder Sports Waist Bag Backpack for Running Hiking Cycling Climbing Camping Travel nylon Dimensions: L 11.2* H 8.7* W4.5 inches High quality nylon fabric and fine workmanship 5 kinds of method: purse,shoulder bag,waist pack,handbag,backpack. Perfect for carrying your water bottle, cell phone, keys, MP3 and so on when you are cycling, running, hiking, climbing or anyother outdoor sports. If you have any questions,please feel free to contact us,we will try our best to make you satisfied,thank you!