If you are looking for a lightweight, durable hydration solution to wear around your waist, the Leatt 1.5 Core hydration pack will be just what you are looking for. Includes a 1.5 liter bladder and bite valve, there is also a magnetic catcher that comes with the feed tube, so it stays in place. 3.0 liters of cargo storage will give you enough room for the essentials with extra pockets on the waist belt. AirLine back ventilation ensures sweat is kept to a minimum, there are even 2 foldable bottle mesh compartments, and one size fits all!