Hydration system, thanks to braces you can carry this backpack directly on the back, the braces are adjustable, and have an additional clasp on the front, thanks to which the backpack do not move during activity. D-rings are attached to the back of the backpack, it helps to attach it to vest or any extra accessory. A wide grip is clearly attached to the front, clearly improving the grip while pouring water through a large plastic stopper. The tube feeding water from the container to the mouth has been placed in a protective bag, which has a significant effect on both the beverage temperature and hygiene (the algae does not develop in the plastic tube). The container is recommended to anyone who actively spends time in nature and likes the functionality of his equipment. 3L Hydration pack is designed just for cold drinks.