Mutant Series

Osprey Mutant Climbing/Mountaineering Pack
Climbing | Mountaineering
Osprey Mutant 38
We've combined the long-haul capabilities of the Variant Series with the light and fast ethos of the Mutant to create a streamlined offering of alpine-, rock-, and ice-focused solutions for any climber, any season and any destination.
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Key Attributes

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.


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."

Carry Information

  • Suspension: Removable Atilon sheet laminated to ridge foam, HDPE top stay

  • Harness: Laminated EVA

  • Hipbelt: Removable web belt