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Osprey Mutant 38 Climbing and Mountaineering Pack

SKU# OSP_10052

The Mutant 38 is just the size for long days in the mountains with its climbing- and winter-specific features and a slimmed down volume for fast and light ascents. The backpanel sheds snow, ice tool attachments and glove-friendly buckles are easy to use, the hipbelt has gear loops and stashes behind the pack for access to your harness when you need it, there is integrated helmet and rope carry options and a removable top pocket plus a lot more to make the Mutant 38 a nimble and capable alpine machine. Check out this review at the American site Rock and Ice.

Availability: In stock

  • Blue Fire
  • Small-Medium
  • Medium-Large

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Size Chart

All Mighty Guarantee


  • Load range: 5-18kg
  • Suspension:
    • Removable HDPE sheet
    • Two aluminium stays form V support
    • Removable Atilon sheet laminated to ridge EVA
  • Stretch-woven fabric over contoured EVA foam harness and hipbelt
  • Dual hipbelt gear loops and ice gear carry attachment
  • Reverse-wrap hipbelt
  • Snowshed fabric backpanel
  • Dual ToolLocks™ with bungee tie-offs
  • Front panel daisy chain for additional gear attachment
  • Three-point haul system
  • Internal hydration sleeve
  • Glove-friendly buckles
  • Rope attachment and internal compression
  • Removable top lid with integrated FlapJacket™ for lidless use
  • Top or front of pack helmet carry
  • Reinforced A-frame ski carry
  • Quick release upper side compression straps
  • Lower side compression straps


Capacity 36 Litres (Small-Medium), 38 Litres (Medium-Large)
Dimensions 68 x 32 x 30cm (Small-Medium)
73 x 32 x 30cm (Medium-Large)
Harness Contoured EVA
Hydration Compatible Yes
Access/Loading Top
Average Weight 1.2kg (Small-Medium)
1.3kg (Medium-Large)
Made From Main: 210HD high tenacity nylon
Accent: 210D nylon honeycomb
Bottom: 420HD nylon packcloth


  • After each trip, empty the pack including any food, dirt or spilled contents
  • Clean the zips regularly using mild soap, warm water and soft brush. This will help keep them in proper working condition.
  • Wipe the exterior of the chassis with a damp cloth or sponge
  • Clean the pack fabric by scrubbing stains and dirt with warm water, mild detergent and a soft brush or sponge
  • Use a wet towel with clean non-soapy water to wipe away any soap residue on the pack.
  • Hang your pack to dry outside or in a well ventilated area, out of direct sunlight.
  • Note: DO NOT immerse packs with a HighRoad™ Chassis in water


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