This water carrier has a simple design and can hold much more than your average bottle. It fits comfortably on your back, and is lightweight and durable. This backpack makes drinking water easy with its extended mouth hose. You barely have to turn your head to get a drink. This is the type of design that most marines and soldiers use during physical training so it doesn’t hinder maneuverability or add a lot of weight. With your water on your back, the weight is dispersed evenly so there are no issues with balance. Bonus perk: There are plenty of roomy pockets for storage, which are especially handy during overnight runs or ultra-marathons.