The high-quality hydration backpack is made of EVA material which is BPA-free, FDA-approved and tasteless. Easy and simple to drink, just pull the rubber mouthpiece out and the water comes right out. Water bag in the volume design, consider full, moderate capacity, comfortable and labor-saving, strong toughness, ultra-light durable, can also be placed with small items.
With adjustable shoulder straps, the backpack fit for men, women, and youth. Wide webbed shoulder straps help to reduce the burden of your shoulder which means you can wear this pack for hours.
Quickly replenish water during fast movement, and add water in a time when there is more sweat. It is good at pressure-tolerant and leak proof for outdoor working, such as biking, running, hiking, adventure and so on.