Osprey Mutant 38 Backpack

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Whether mountaineering in demanding alpine conditions or spending long days conquering multi-pitch ascents, the Mutant 38 is fine-tuned for vertical ice and steep terrain.

Developed with the help of local guides and athletes and honed over years of abuse in extreme conditions, its close-to-body fit and refined feature-set promotes safety and stability in even the worst of conditions. New colors, advanced fabrics and refined features make the latest iteration of Mutant 38 even more formidable than its predecessor, proving that the evolution isn't done yet. The whole Mutant family benefits from the addition of lightweight, recycled NanoFly® and robic fabrics for impressive durability and lower environmental impact than virgin materials.

Dual ToolLocks, rope carry, snowshed backpanel, glove-friendly buckles and strippable features.

Developed and tested by athletes and local guides.

A narrow profile, close-to-body carry and Osprey's superior fit makes for efficient and ultimately safer movement in the mountains.

Removable webbing gear attachment straps
Front panel daisy chain loops, compatible with Voile straps
Three-point haul system
Snowshed fabric backpanel
Dual ToolLocks with bungee tie-offs
Internal hydration sleeve
Lightweight, glove friendly buckles
Rope attachment/internal compression
Removable top lid with zip pocket; FlapJacket and stowaway pocket
Removable, multi-position helmet carry net
Reinforced A-frame ski carry
Quick release upper and lower compression straps
Dual hipbelt gear loops and ice gear carry loops
Reverse-wrap hipbelt
Removable Atilon framesheet, dual aluminum stays

2197 IN3 / 36 L
24.8H X 11.81W X 10.24D IN.
2.516 LBS.

2319 IN3 / 38 L
26.77H X 11.81W X 10.24D IN.
2.692 LBS.

Measurements are in inches

For Atmos, Kode & Variant Series Packs

  Torso Length  Hip Measurement 
>18.5  >31 
18-20.5  30-34 
<18.5  <33 


For Aether & Ariel Series Packs

  Torso Length  Hip Measurement 
>18.5  27-31 
18-20.5  30-34 
<18.5  33-37 


For Manta, Hornet, Raptor, Viper & Talon Series Packs

  Torso Length 
S/M Less than 19 inches
M/L  Larger than 19 inches

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Premium gear is our promise

We were established almost 75 years ago by John Monod, a Swiss mountain guide and ski instructor. Quality outdoor gear is what our brand was built upon since 1949. Learn more.

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