Seral 7L Hydration Pack

What Our Gearhead® Experts Are Saying:

“The Seral 7L is my favorite pack for technical rides—it sits low, stays locked in, and doesn’t shift even when I’m hammering descents. The lumbar reservoir is super easy to drink from, and the compression straps keep everything perfectly snug. It’s the definition of freedom on the trail.”

When precision, speed, and balance matter most, the Osprey Seral 7L Hydration Pack delivers next-level stability and hydration efficiency for serious riders. Its off-the-back design keeps weight low and centered, giving us more control and agility when navigating steep switchbacks or fast descents.

The AirScape™ lumbar backpanel features thick ridged foam and a central air channel for consistent ventilation and comfort, while the contoured Airmesh hipbelt wraps securely around the waist for an ultra-stable fit. Side compression straps pull the load close, eliminating bounce when tackling rough terrain.

A dedicated hydration compartment houses the included 1.5-liter Hydraulics™ Lumbar Reservoir, which integrates with a magnetic hose clip on the hipbelt for seamless hydration access mid-ride. The zippered main compartment and front organizer pocket keep spare tubes, CO₂ inflators, and tools neatly arranged, while reflective details and a blinker light attachment boost visibility for early or late rides.

Constructed from bluesign®-approved recycled nylon with PFAS-free DWR, the Seral 7L is built for riders who demand comfort, efficiency, and environmental responsibility in a compact, high-performance design.