What's Summit Club?
Find Your Store
Accessibility Policy
Home Page
When autocomplete results are available use up and down arrows to review and enter to select. Touch device users, explore by touch or with swipe gestures.
Expert Help

Cart, contains 0 items

Accessibility Policy
Home Page

Cart, contains 0 items

When autocomplete results are available use up and down arrows to review and enter to select. Touch device users, explore by touch or with swipe gestures.

Osprey Packs
Mutant 38 Backpack

4.818181818181818 out of 5 stars
11 Reviews
$209.95
Color:Blue Flame

Size:

Size Chart

Quantity

Join Summit Club+ and


Mutant 38 Backpack excels in alpine terrain with refined features and guide-tested durability

What Our Gearhead® Experts Are Saying:


"The Mutant 38 is my go-to alpine pack for everything from winter mountaineering to long alpine rock routes. It’s light but super tough, and it carries like a dream when I’ve got a rope, tools, and layers. I love how strippable it is—I can dial it down for summit pushes or beef it up for overnight missions."


For the steepest lines and harshest conditions, we count on the Osprey Mutant 38 Backpack to stay close, stay light, and stay strong. Developed with feedback from mountain guides and built to handle high-altitude, cold-weather abuse, this alpine pack blends load-carrying comfort with technical precision. Whether we’re climbing mixed lines or pushing toward a remote summit, the Mutant 38 moves with us and adapts to whatever the route throws our way.


Its narrow profile and glove-friendly features make it ideal for vertical terrain, and we love how strippable it becomes for ultralight summit pushes—shed the top lid, framesheet, helmet net, and hipbelt padding to go lean. Dual ToolLocks, ski and rope carry, and reinforced gear loops let us haul technical equipment with confidence. Now made with bluesign® approved NanoFly® and robic recycled fabrics, it’s more sustainable without compromising strength.


Details

  • 38L alpine climbing pack built for mountaineering, ice, and mixed routes
  • Removable top lid with zippered pocket and integrated FlapJacket
  • Dual ToolLocks and rope compression system for technical gear carry
  • Reinforced A-frame ski carry and daisy chain loops for modular attachment
  • Three-point haul system supports vertical hauling and anchors
  • Snowshed backpanel prevents ice and snow buildup
  • Reverse-wrap hipbelt with dual gear loops and removable padding
  • Helmet carry net with multi-position adjustment and stowaway pocket
  • Item #OSPZ1P8
Responsible Collection
Recycled/Repurposed, bluesign® APPROVED
Material
recycled high tenacity nylon, DWR treatment
Volume
[S/M] 36L (2197 cu in), [M/L] 38L (2319cu in)
Support/Suspension
Atilon
Waist Belt
yes
Access
top
Gear Loops
yes
Helmet Carry
yes
Dimensions
[S/M] 10.24 x 11.81 x 24.8in, [M/L] 10.24 x 11.8 x 26.77in
Activity
trad climbing, ice climbing, mountaineering
Manufacturer Warranty
limited lifetime
Two hikers wearing bacpacks looking out over mountain valley view with Osprey bird logo overlay.

Built For The Long Haul

Osprey Packs focuses on one thing: packs that fit just right, carry comfortably, and hold up to years of use. Osprey stands for gear you can trust enough to forget about until the adventure’s done.

Shop All Osprey Packs