1.[Water Bottle Pocket]: The mesh bag of the belt water bottle can be untied to store water bottles or put away when needed. And there is a fixed strap for the water bottle to avoid shaking, you can exercise with peace of mind. 2.[Ultra-thin Waist Bag]: Say goodbye to bloated, the side looks very close, and it will not be so bulky and bloated. It fits tightly, the waistband can be adjusted in size, and the button link is convenient to wear. The waist size can be adjusted freely.Keep it beautiful. 3.[Water resistant]: Water resistant material protect your phone and other valuables safe and dry from sweat and almost any weather condition (not fully waterproof). 4.[Headphone hole and reflective strip]: The headphone hole is designed to facilitate you to enjoy music while running, and the reflective strip enhances the safety performance of night running.