Description For riders looking for a low-profile lumbar pack with integrated hydration, Osprey 4-liter Seral is the perfect trail companion. This slim waist pack features the next-gen 1.5-liter Hydraulics reservoir with high-strength magnetic coupling for improved hose management even in rough terrain and enough storage capacity for ride essentials, such as a spare tube, CO2 and multi-tool and, of course, snacks. AirScape backpanel with contouring lumbar wrap provides maximum stability Large zippered main compartment with reservoir sleeve Included Osprey Hydraulics 1.5 L Lumbar Reservoir with strong magnetic hipbelt bite valve attachment. Main compartment tool organization and internal zippered pocket Blinker light attachment with reflective graphic SIZE VOLUME DIMENSIONS WEIGHT O/S 244 IN3 / 4 L 19H X 32W X 11.5D CM 0.455KG
