Mutant 38

Article code 210000007210 / 009126
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Designed by guides and athletes, the Mutant 38 fits perfectly between its bigger and smaller siblings; great for long days in the mountains that don't require setting up basecamp but might require a ledge-bound shiver-bivy. The backpanel sheds snow and easy-to-use ice tool attachment and glove-friendly buckles mean less time fiddling with your pack. With a hipbelt that includes gear loops and stashes behind the pack to provide access to your harness when you need it, plus integrated helmet and rope carry, the Mutant 38 is a nimble and capable alpine machine that fits better and feels more comfortable than what you’re used to. Whether you're enjoying a North Cascade's classic or getting showered by spindrift in the Canadian Rockies, the Mutant 38 can do everything you need except belay you on the next pitch.


  • FORM FOLLOWS FUNCTION: Built to be lightweight and reliable with alpine-specific features such as dual ToolLocks with bungee tie-offs, helmet carry (52L and 38L only), strippable features, rope carry and a narrow profile for efficiency in the mountains.
  • STRIPPED WEIGHT: Removable top lid (for 52L and 38L only), removable suspension (framesheet on 22L, framesheet and/or dual stays on 38L/52L), and a removable hipbelt on 52L allow the user to trim weight.
  • FIT: Osprey's superior fit makes for efficient and ultimately safer movement in the mountains so that you're never thinking about your pack during runout cruxes through rotten rock or thin ice.


  • 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 integraged 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
  • Dual hipbelt gear loops and ice gear carry attachment
  • Reverse-wrap hipbelt


  • SUSPENSION: Removable Atilon sheet laminated to ridge foam, HDPE top stay
  • HARNESS: Laminated EVA
  • HIPBELT: Removable web belt


  • LOAD RANGE: 10 - 40 lbs.
    • S/M: 2197 IN3 / 36 L | 26.8H X 12.6W X 11.8D IN. | 2.7 LBS.
    • M/L: 2319 IN3 / 38 L | 28.7H X 12.6W X 11.8D IN. | 2.8 LBS.
  • FABRIC: 
    • MAIN: 210D High Tenacity Nylon
    • ACCENT: 210D Nylon Honey Comb Contrast Thread
    • BOTTOM: 420HD Nylon Packcloth


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