Azarxis Hydration Backpack Pack, 5.5L Running Vest for Women and Men - Fit for Marathon Trail Race

??????? ONLY BACKPACK: This package is just a hydration backpack, not including water bladder or water bottles ??????? ADJUSTABLE BUST VEST: solid duraflex buckle + high density webbing band, the trail running backpack is suitable for chest size 31.5 - 47.3 inch kids mens or women’s. The one size military hydration vest is free size (one-size-fits-most), fit your waist length freely ??????? LIGHTWEIGHT & NO SHAKE: The hydration pack provides a tight, comfortable and non-swaying fit that won't shift even during running. The hydration vest with ultra-light design for maximum support and minimal burden ??????? MULTI-POCKET DESIGN: Multi-pocket design can meet all your sports needs. Water bottles, mobile phones, keys, money, food can be easily stored in the front pocket of the backpack; Water bladder, light jacket and other items can be stored in the back pocket. The vest backpack can give you plenty of storage space ??????? MARATHONER HYDRATION VEST: Our waterproof running water vest can accompany your Running, Jogging, Marathon, Climbing, Hiking, Cycling, Walking, Backpacking, Traveling, etc. It is the hydration backpack designed for men, women and children