The Osprey Firn is designed for fast-moving ski mountaineers and backcountry athletes who demand efficiency on steep ascents and rapid descents. Built with a vest-style fit for close-to-body stability, this lightweight ski touring pack keeps essentials secure and accessible when every second counts. Constructed from durable carbonate-coated fabric with a snow-shedding backpanel, it thrives in demanding alpine environments where weather and terrain are constantly changing. As a bluesign PRODUCT, the Firn also ensures that its materials meet the highest standards of environmental and social responsibility. Whether you're skinning before work, scrambling over ridgelines, or carving down technical descents, the Firn delivers the support and agility needed for high-output mountain days.

Packed with alpine-specific features, the Osprey Firn offers quick-access storage and clever solutions to keep transitions smooth. The innovative ambidextrous ski lasso system allows skis to be stowed without removing the pack, while reinforced ski loops and dual axe/pole attachments ensure reliable carry for essential gear. On-body pockets provide space for skins, crampons, GPS or phone (If you are using an avalanche transciver in a chast harness we reccomend that you store your phone or GPS in the main compartment of the pack), while a dedicated avalanche tool pocket keeps safety equipment organised. Additional highlights include a top compression strap that doubles as an axe stabiliser, a goggles pocket, and removable HDPE framesheet to adapt weight and stiffness to your activity. Designed with athlete-focused efficiency, this is a versatile ski touring pack that balances performance, durability, and sustainable design for those who push hard in the mountains.

Osprey Firn 18 Features

• 100% recycled 210D nylon, coated with bluesign APPROVED carbonate, DWR treatment made without PFAS
• Front panel access
• Top goggles pocket
• Vest-fit harness
• Innovative ski lasso
• Phone/GPS pocket (if not using beacon)
• Top compression strap doubles as axe stabiliser
• Front panel avalanche tool pocket
• On-body accessible skin/crampon pocket
• Dual axe/pole attachments

S/M
Volume: 18L
Weight: 1kg
Dimensions: 49H X 29W X 24D CM
M/L
Volume: 20L
Weight: 1.02kg
Dimensions: 51H X 29W X 24D CM