Osprey Seral 4

Who is looking for a flat belt bag with integrated hydration system for the trail, has found just the right thing with the Seral with 4 liters. Its slim format hides Osprey's latest 1.5 liter Hydraulics™ hydration bladder with a particularly strong magnetic connection for improved handling of the hose even in rough terrain and enough storage space for essentials such as a spare hose, CO2 and multitool and snacks.