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Firn 18L Backpack
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Warning: California Proposition 65
Fast-moving alpine days feel lighter and more intuitive with the Firn 18L Backpack built for uphill speed and clean descents
What Our Gearhead® Experts Are Saying:
“I’ve used this pack for quick pre-work ski laps where stopping is not an option. The vest-style fit keeps it glued to my torso, and the ski lasso lets me stash skis without taking the pack off, which honestly saves time and energy when things are cold and fast.”
Early mornings move fast when there’s snow on the skin track and limited time to get laps in before the day starts. We built our routine around efficient systems, and the Firn 18L Backpack from Osprey quickly became part of that flow. Whether we’re skinning straight from the car or transitioning on a windswept ridge, this pack stays tight to the body and never feels like it’s slowing us down.
The Firn 18L Backpack is designed for movement-first ski days where access matters as much as stability. The vest-style harness spreads weight evenly for comfort during long climbs, while on-body pockets keep skins, tools, and essentials within reach. A front avalanche tool pocket stays organized and fast to deploy, and the innovative ski lasso system allows quick ski carry without breaking stride. Every detail is focused on keeping transitions smooth and momentum intact when the window for skiing is short.
Details
- Lightweight alpine ski backpack for fast ascents and quick transitions
- 18-liter capacity for essential gear on short backcountry missions
- Vest-style harness for stable, body-hugging carry while skinning
- Ambidextrous ski lasso allows ski carry without removing the pack
- Front panel avalanche tool pocket for organized safety gear access
- On-body pocket access for skins or crampons during transitions
- Dual axe and pole attachments for steep or technical routes
- Item #OSPZ1LZ
- Responsible Collection
- Recycled/Repurposed, [materials] Bluesign Approved
- Material
- [face fabric] 210D 100% recycled nylon, NanoTough (PFC-free DWR finish), [lining] 70D 100% recycled nylon, PFC-free DWR finish, [bottom] 210D 100% recycled nylon, PFC-free DWR finish
- Volume
- [small/medium] 18L (1098cu in), [medium/large] 20L (1220cu in)
- Support/Suspension
- HDPE framesheet, removable
- Shoulder Straps
- vest-style, padded, adjustable
- Waist Belt
- adjustable, padded side fins
- Access
- front panel
- Pockets
- 1 top goggled, 1 phone/GPS, 1 front panel tools, 1 skin/crampon pocket
- Gear Loops
- 2 ski lasso loops
- Ice Axe Carry
- 2
- Trekking Pole Carry
- 2
- Compression
- 2 side straps
- Dimensions
- [S/M] 19.3 x 11.4 x 9.4in, [M/L] 20.1 x 11.4 x 9.4in
- Claimed Weight
- [small/medium] 2lb 3.2oz, [medium/large] 2lb 3.84oz
- Activity
- backcountry skiing, backcountry snowboarding, hiking
- 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
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