Prefer an off-the-back hydration solution instead of an over-the-shoulder pack? The 7-liter Seral waist pack features a next-gen 1.5-liter Hydraulics reservoir and a zippered main compartment and hipbelt pockets fit your spare tube, patch kit, CO2 inflator and more. Compression straps pull the pack into your lower back and wrap around your hips for supreme stability, even over technical terrain. KEY ATTRIBUTES: a LUMBAR CARRY For riders who prefer off-the-back hydration carry and the minimalism provided by a lumbar pack. a RIDE STABILITY Our bike-specific, angled hipbelt and compression straps provide stability and comfort with a close-to-body fit. a RESERVOIR INCLUDED A dedicated hydration compartment stores an included Hydraulics(TM) LT 1.5 L Lumbar Reservoir for short to medium rides and compresses for stable carry. a SUSTAINABLE DESIGN + bluesignA(R) approved main body and bottom fabrics + GRS-certified 100% recycled main body and bottom fabrics + All DWR treatments made without PFAS + BPA-free reservoir FEATURES: a AirScape backpanel with contouring lumbar wrap provides maximum stability a Large zippered main compartment with reservoir sleeve a Included Osprey Hydraulics 1.5 L Lumbar a Reservoir with strong magnetic hipbelt bite valve attachment. a Easily accessible zippered front pocket with internal tool organization a Dual zippered hipbelt pockets a Blinker light attachment with reflective graphic