Price: $105.95
(as of Jun 29, 2026 11:05:41 UTC – Details)
For riders looking for a low-profile lumbar pack with integrated hydration, 4-liter Seral is the perfect trail companion. This slim waist pack features the next-gen 1.5-liter Hydraulics reservoir with high-strength magnetic coupling for improved hose management even in rough terrain and enough storage capacity for ride essentials, such as a spare tube, CO2 and multi-tool and, of course, snacks.
Lumbar Carry – For riders who prefer off-the-back hydration carry and the minimalism provided by a lumbar pack
Ride Stability – Our bike-specific, angled hipbelt and compression straps provide stability and comfort with a close-to-body fit
Reservoir Inclcuded – A dedicated hydration compartment stores an included Hydraulics LT 1.5 L Lumbar Reservoir for short to medium rides and compresses for stable carry
Dual zippered hipbelt pockets
Blinker light attachment with reflective graphic
Item Dimensions: 8.7H x 12.6W x 5.9D in; Item Weight: 1.16lb