Osprey Seral 4

A dedicated hydration compartment stores an included Hydraulics LT 1.5 L Lumbar Reservoir for short to medium rides and compresses for stable carry. A dedicated hydration compartment stores an included Hydraulics LT 1.5 L Lumbar Reservoir for short to medium rides and compresses for stable carry Our bike-specific, angled hipbelt and compression straps provide stability and comfort with a close-to-body fit

The shape of the waist belt has been specially designed for cycling and keeps the bag close to the body together with the compression straps for stability and comfort. A dedicated hydration compartment stores an included Hydraulics LT 1.5 L Lumbar Reservoir for short to medium rides and compresses for stable carry Our bike-specific, angled hipbelt and compression straps provide stability and comfort with a close-to-body fit

For riders who prefer off-the-back hydration carry and the minimalism provided by a lumbar pack Our bike-specific, angled hipbelt and compression straps provide stability and comfort with a close-to-body fit A dedicated hydration compartment stores an included Hydraulics LT 1.5 L Lumbar Reservoir for short to medium rides and compresses for stable carry + bluesign approved main body and bottom fabrics + GRS-certified 100% recycled main body and bottom fabrics + All DWR treatments made without PFAS + BPA-free reservoir AirScape backpanel with contouring lumbar wrap provides maximum stability