Osprey Seral 4 Lumbar Pack - One Size Postal Blue

The Osprey Seral lumbar pack is perfect for the minimalist looking for something other than a traditional over-the-shoulder pack. The Seral features a dedicated hydration compartment that stores an included 1.5L lumbar reservoir and compresses for stable carry. Dedicated hose magnet attaches the bite valve for easy access.

Easily accessible zippered main compartment with internal tool organization

Dual zippered hip belt pockets

Front panel bungee carries extra clothing

Direct access zip path to reservoir compartment

Magnetic hip belt bite valve attachment

Hydraulics 1.5L Lumbar Reservoir included

Extra thick ridged foam with center air channel for excellent ventilation

Airmesh wrap hip belt with zippered fabric pockets provide stability and breathability

WARNING! High Energy Magnet Could affect the function of electronic instruments like pacemakers or avalanche beacons Swallowing hazard. Not for use by children under four years old. See Osprey Hydraulics™ Owner’s Manual for more information