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Berm 4L Backpack
Size:
Quantity
Only 4 In stock
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Warning: California Proposition 65
Compact performance and on-the-go hydration with the Berm 4L Backpack
What Our Gearhead® Experts Are Saying:
"The Berm 4 hits the sweet spot for quick trail rides. It’s just big enough for a 2.5-liter reservoir, a snack, and a multitool—everything I actually need without the extra weight. The fit is snug, breathable, and stable even when the trail gets rough."
The Berm 4L Backpack is built for riders who want reliable hydration and lightweight storage on every ride. Outfitted with a 2.5-liter Hydraulics LS reservoir and a magnetic bite valve, this compact bike pack keeps water easily accessible without slowing your flow. A small zippered pocket organizes essentials, and reflective details enhance visibility when daylight fades.
The AirScape backpanel and ventilated harness combine to deliver cool, breathable comfort from first climb to final descent. Designed with a unisex fit that accommodates a range of body types, the Berm 4L blends trail-ready function with a sleek, low-profile silhouette. Made with bluesign-approved, 100% recycled materials and a PFAS-free DWR finish, it’s built with sustainability and performance in mind.
Details
- Compact 4-liter bike hydration pack for trail rides and commutes
- Includes Hydraulics 2.5L LS reservoir with magnetic bite valve attachment
- AirScape backpanel enhances airflow and stability during movement
- Ventilated mesh harness provides breathable comfort on hot days
- Zippered pocket organizes small essentials like tools, keys, or snacks
- Reflective details and blinky light attachment improve visibility
- Unisex fit designed for a wide range of body types
- Item #OSPZ1PX
- Responsible Collection
- Recycled/Repurposed, Bluesign Approved
- Material
- [face fabric] 300D 100% recycled polyester, PFC-free DWR finish, [lining] 70D 100% recycled nylon, PFC-free DWR finish, [backpanel, harness] 100% recycled polyester
- Volume
- 4L (244cu in)
- Support/Suspension
- Airscape Backpanel
- Shoulder Straps
- mesh, adjustable
- Hydration Compatible
- yes
- Reservoir Included
- Hydraulics LS 2.5L
- Access
- zippered top
- Pockets
- 1 zippered top
- Activity
- trail riding
- Manufacturer Warranty
- lifetime

Built For The Long Haul
Osprey Packs focuses on one thing: packs that fit just right, carry comfortably, and hold up to years of use. Osprey stands for gear you can trust enough to forget about until the adventure’s done.
Cancer - P65Warnings.ca.gov