Osprey Mutant 38 (17)

A versatile option for ice climbing, alpine pursuits, or ski mountaineering, the lidded Osprey Mutant 38 pack offers over 2100 cubic inches of storage capacity and an abundance of climber-friendly features at a minimal weight.

Aluminum support stays and a framesheet lend the pack lightweight structure and load-balancing stability. When you aren’t carrying a heavy load and don't need as much support or just want to reduce the weight of the pack itself, you can remove the stays and/or the framesheet entirely. A laminated EVA backpanel cushions the load and is exceptionally durable. Padded shoulder straps enhance fit and load-hauling capability, as does a contoured hipbelt that can easily be pulled back and lashed against the pack itself for ease of use when you’re wearing a climbing harness. Load-lifter straps and an adjustable sternum strap further ensure a proper fit. The Small/Medium size of the pack accommodates torso lengths ranging from 16”-19” and the Medium/Large best fits 18”-22” torso lengths.

The top-accessed main packbag has a protective lid that can be removed entirely to reduce the weight of the pack. Dual compartments in the lid aid in gear storage and organization. An integrated FlapJacket panel pulls forward to protect the packbag if and when you choose to leave the lid behind.

There are also an abundance of climbing and alpine features like reinforced A-frame carry ski loops, glove-friendly buckles, dual ToolLocks with bungee tie-offs, gear loops and ice gear attachment points on the hipbelt, and an integrated helmet carry system, and a three-point haul system. Other features include side compression straps, front panel gear attachment points, a sternum strap safety-whistle, and a lined sleeve that makes the pack hydration system compatible (system sold separately).


  • Removable Atilon sheet laminated to ridge EVA
  • Laminated EVA harness
  • Contoured EVA foam hipbelt with stretch woven with gear loops and ice gear clip attachment
  • Snowshed fabric backpanel
  • Dual ToolLocks with bungee tie-offs
  • Front panel daisy chain for additional gear attachment
  • Three-point haul system
  • Internal hydration pocket
  • Glove-friendly buckles
  • Removable top pocket
  • Helmet carry
  • Integrated FlapJacket with stowaway pocket
  • Reinforced A-frame ski carry
  • Quick release upper side compression straps
  • Lower side compression straps
  • Reverse-wrap hipbelt

Technical features

  • Article-No.: 5-287
  • Material: 210D High Tenacity Nylon
  • Capacity: S/M-35, M/L-38 l
  • Weight: S/M-1110, M/L-1190 g
  • Sex: Unisex
  • Recommended usage: Climbing, Mountaineering, Snow Sports
  • Size: 68 x 32 x 30 cm
  • Load up to: 22,7 kg
160,00 €
Jaama 12
Mutant 38 M/L dyno green available
Mutant 38 M/L gritstone black available
Mutant 38 SM dyno green available
Mutant 38 SM gritstone black available