Osprey - Hydraulics LT ReservoirThe next generation of reservoir is here. Redesigned from tip to tail, the lightweight 1. 5 liter Hydraulics LT reservoir features innovative and ergonomic improvements that make it easier to carry, fill, load and use whether you're buzzing around town, travelling or hitting the trails. This version gets dual baffles, keeping the reservoir as light as possible while still offering improved control and structure and works best with internal reservoir