Osprey Seral Waist Pack

The Seral, a 4-liter lumbar pack with integrated hydration, is the ideal companion for riders seeking a low-profile design on the trail. Featuring the latest 1.5-liter Hydraulics reservoir with a strong magnetic coupling for improved hose management in rough terrain, this slim waist pack offers enough storage space for essential items like a spare tube, CO2 cartridge, multi-tool, and of course, snacks.

For riders who prefer carrying hydration off the back and appreciate the minimalism of a lumbar pack, the Seral is the perfect choice. Our bike-specific angled hipbelt and compression straps ensure stability and comfort while providing a close-to-body fit. The dedicated hydration compartment accommodates the included Hydraulics LT 1.5 L Lumbar Reservoir, perfect for short to medium rides, and compresses for secure carry.

The Seral features bluesign approved main body and bottom fabrics, as well as GRS-certified 100% recycled materials. All DWR treatments are made without PFAS, and the reservoir is BPA-free for peace of mind. The AirScape backpanel with a contoured lumbar wrap offers maximum stability for a comfortable ride.

In conclusion, the Seral lumbar pack combines hydration and storage in a sleek and efficient design for riders who prioritize function and comfort on the trails.

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