Osprey's HydraulicsTM LT Reservoir by HydrapakAR is made for light and fast activities where weight and balance are critical. Twin welded chevron baffles stabilize the water and maintain a flat profile. The streamlined design allows for easy loading into internal hydration sleeves. Thoughtful design makes filling, cleaning and most importantly staying hydrated on the trail easier than ever. All parts are BPA free, phthalate free, lead free, guaranteed. All materials are certified food safe according to FDA and EU regulations.