Why We Like The Osprey Seral 4L Hydration Pack
Osprey´s Seral 4L Hydration Pack provides a minimalist design for mountain bikers looking to carry the essentials on short- to medium-length rides. The main compartment houses a 1.5L hydration reservoir with room to spare for a multitool and a snack or two, while the contoured lumbar wrap delivers a stable, close-to-body fit on varied terrain.
Details
- Bike-specific lumbar pack provides on-the-go hydration
- Made with durable, water-resistant, and recycled materials
- Pack inlcudes a 1.5L, BPA-free Hydraulics lumbar reservoir
- Bite valve attaches to hipbelt magnet for one-hand hydration
- AirScape back panel provides breathable and padded comfort
- Internal zip pocket in main compartment secures small valuables
- Inlcudes a blinker light attachment point (light not included)
- Item #OSPZ1HT
Tech Specs
- Responsible Collection
- Recycled/Repurposed, [material] bluesign® APPROVED
- Material
- [main] 100% recycled, bluesign® APPROVED 600D polyester, PFC-free DWR treatment [bottom] 100% recycled, bluesign® APPROVED 400D nylon, PFC-free DWR treatment
- Volume
- 4L (244cu in)
- Hydration Compatible
- yes
- Reservoir Included
- yes, Osprey Hydraulics 1.5L lumbar reservoir
- Access
- top
- Pockets
- 1 internal zippered
- Compression
- side straps
- Waist Size
- 26-50in
- Dimensions
- 7.5 x 12.5 x 4.5in
- Claimed Weight
- 14.9oz
- Activity
- mountai biking, hiking
- Manufacturer Warranty
- lifetime










1. Your order is usually shipped out within 24-48 hours after your payment is received.
2. The tracking number of your parcel will be sent to you after your order is despatched. You may use the tracking number to check the status of your order online.
3. The shipping fee will be auto-added in the grand total when you send payment.