• KIDS RUNNING HYDRATION PACK: Attention,that backpack Vest with 250ml water bladder .AONIJIE kids Hydration backpack enough capacity for kids to carry 1L of water. It's lightweight with a built-in safety whistle, extra storage pockets, and reflective accents for visibility in low-light environments.
• FLEXIBLE SIZING: Fully adjustable chest straps make sure it doesn't bounce when you move will fit chest sizes from teenagers/kids with 21.6" up to 31.5" chest size (55cm-80cm). This hydration backpack for hydration will keep your littles hydrated and happy.
• Lightweight &Robust Design: Ultralight and comfortable -no bounce, breathable materials, and form fitting – equipped with Soft-touch, no chafe elastic perimeter binding Hydration water pack features rugged ripstop nylon and sturdy metal zipper. Weights just 132g/4.65oz.
• High-Flow 750mL Hydration Bladder:Water bladder is made of premium TPU material. Our hydration bladder passed the pneumatic pressure test, 24-hour swing test and 24-hour vibration test. Large opening is easy to clean and add ice cube.
• WIDE APPLICATIONS: Each our Aonijie running backpack vest with reflective stripe,humanized design, provide safety guarantee for every outdoor athlete. The waterproof lightweight and sturdy running water vest comfortable fit for Jogging, Running, Marathon, Hiking, Climbing, Cycling, Walking, Backpacking, etc.