Osprey Seral 4 Waistpack with Reservoir

The Osprey Seral 4 Waistpack is built for female mountain bikers wanting a low-profile lumbar pack. This slim waist pack includes the next-generation Osprey Hydraulics 1.5-liter hydration reservoir, which is perfect for fueling short to medium rides and fits in a dedicated hydration compartment. A high-strength magnetic coupling improves hose management even in rough terrain. The Seral 4 offers plenty of room for ride essentials and its main compartment features tool organization and a zippered pocket that keeps small items from getting lost in the mix. For riders who prefer off-the-back hydration carry and the minimalism of a lumbar pack, it has to be the women's Osprey Seral 4 Waistpack.

• Bike-specific, angled hip belt and compression straps provide stability and comfort with a close-to-body fit
• AirScape back panel with contouring lumbar wrap for maximum stability
• Included 1.5-liter reservoir with magnetic hip belt bite valve attachment for on-the-go hydration
• Main compartment tool organization and zippered internal pocket keep trail essentials orderly
• ErgoPull waist strap closure system allows for a proper snug and stable fit
• Summer 2025 product