Lightweight Hydration Backpack

Perfect Fit: This hiking backpack measures 15in in height, 8.5in in width, and 3in in depth. It features adjustable chest buckles and a waist belt, with a maximum chest circumference of 45in. The backpack fits snugly against the body and remains stable during use. The shoulder straps are equipped with a survival whistle for emergency signaling. Ultra lightweight design: This running backpack is made of ultra lightweight synthetic fiber fabric, which is waterproof, wrinkle resistant, wear-resistant, easy to wash and dry. The backpack weighs 160 grams and is designed with multiple reflective markings Multi functional storage design: This hydrated backpack is designed with an independent water bag compartment in the main compartment, two water bottle pockets on the shoulder belt, anti-theft zipper mobile phone pockets, which can store energy gel, snacks, keys, cash, towels and any other necessities you need when running. Hydration system: This hydration backpack is equipped with a 1.5-liter large capacity water bag, which can prevent leakage even if the pipeline is under pressure or tilted. The large mouth design facilitates the addition of water or electrolytes Widely applicable: This backpack is suitable for cycling, hiking, running, skiing, mountaineering, and racing training.