Hydraulics LT Reservoir by Osprey is a lightweight hydration system with a BPA-Free and Phthalate-Free design. The compact structure allows the lightweight container to easily fit into hydration sleeves for a hands-free method of staying hydrated when venturing out onto the trail. . ????. . . . . . TPU bladder. . BPA-Free. . Phthalate-Free. . Slide-Seal closure. . Holds 2.5 liters of liquids. . Twin-welded chevron baffles. . Carry handle. . Magnetic bite valve keeps water from escaping. . QuickConnect hose system. . Lightweight. . Compact. . Fits into hydration sleeves. . Imported. .