If you’re looking for a lightweight and secure hydration solution to wear around your waist, the Hydration Core is just what you need. It features a 1.5L bladder and a valve for water intake, as well as a recovery system that keeps the feeding tube in place. The 3L storage capacity will allow you to store the essentials thanks to additional pockets on the belt. The AirLine back ventilation helps to keep sweating to a minimum, there are even 2 collapsible mesh compartments for bottles, and one size fits all!