Osprey Hydraulics LT 1.5 - A well thought-out 1.5 liter hydration bag. - The drinking head has a magnet that grabs Osprey hydration pack's counter part to keep it out of the way - Easy to operate, secure Slide Seal top is light weight and tight - Handle enables easy handling (well, duh) - Bite Valve: hands-free drinking - Pouch material: TPU for durability - BPA free - Hydraulics hose is easy to replace if ever necessary, thanks to QuickConnect connector - Chevron baffles helps maintain the shape of the bladder and prevents sloshing - Volume markings on body