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Osprey Seral 4L Bike Hydration Lumbar Pack

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Product details

Management number 236313910 Release Date 2026/07/09 List Price $40.00 Model Number 236313910
Category
Seral 4L Bike Hydration Lumbar Pack
Hydrate fast and ride light with this compact, stable lumbar-style bike pack featuring an integrated low-profile Hydraulics™ 1.5L LS Reservoir. A magnetic attachment secures the bite valve to the hipbelt, while a bike-specific airmesh wrap hipbelt and close-to-body AirScape™ backpanel deliver breathable, bounce-free comfort. Vertical straps hold a chin guard or extra layer for added versatility.
Reservoir Included
Drinking while riding has never been easier with the included Hydraulics™ LS Lumbar 1.5 Reservoir, smart hose routing and a magnetic bite valve attachment.
Rider-Focused Features
Enhance every ride with stabilizing side compression, dual tuckaway front accessory straps designed to secure a chin guard or extra layer, and more.
AirScape™ Backpanel
Pedal with the comfort and stability of a mesh-covered, extra-thick ridged foam backpanel featuring a center airflow channel.
bluesign® PRODUCT
This product meets bluesign® PRODUCT requirements, which means materials and components have been selected that adhere to rigorous third-party environmental and social criteria during production.
AirScape™ Backpanel
Mesh-covered, extra-thick ridged foam with center airflow channel provides comfortable, stable, close-to-body carry Made with 50% recycled EVA foam
Hipbelt
Breathable airmesh wrap hipbelt provides stability on rough terrain Crossbody ErgoPull hipbelt system ensures snug fit for optimal load support
MAIN
bluesign® APPROVED, 100% recycled 300D polyester, DWR treatment made without PFAS
LINING
bluesign® APPROVED, 100% recycled 210D nylon, DWR treatment made without PFAS
MESH
Backpanel & Hipbelt Mesh: bluesign® APPROVED, 100% recycled polyester WARNING: This product can expose you to chemicals including dimethylformamide, which is known to the State of California to cause cancer. For more information, go to oehha.ca.gov/proposition-65/about-proposition-65

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