Osprey Mutant 52 Mountaineering Climbing Pack

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The Mutant 52 provides comfort and stability on alpine rock and ice adventures that need a pack up for the challenge. Features include bluesign®-approved recycled fabrics for impressive durability and lower environmental impact, a snow-shedding backpanel, easy-to-use ice tool attachments and glove-friendly buckles, gear loops, webbing and daisy chain loops for attaching extra gear, reinforced a-frame ski carry and integrated helmet and rope carry options. Shave weight with the removable top pocket without compromising protection. Tested in some of the harshest conditions.


  • Load range: 9-23kg
  • A narrow profile, close-to-body carry and Osprey's superior fit makes for efficient and ultimately safter movement in the mountains
  • Backpanel:
    • Atilon framesheet with dual aluminium stays
    • Snowshed fabric for additional comfort in wet and cold conditions
    • Ridged EVA foam
  • Stretch-woven fabric over contoured EVA foam harness and hipbelt
  • Adjustable sternum strap with safety whistle
  • Dual hipbelt gear loops and ice gear carry attachment
  • Removable top lid with zip pocket, FlapJacket™ and stowaway pocket
  • Dual ToolLocks™ with bungee tie-offs
  • Removable webbing gear attachment straps
  • Front panel daisy chain loops, compatible with Voile straps, for additional gear attachment
  • Three-point haul system
  • Internal hydration sleeve
  • Lightweight, glove-friendly buckles
  • Rope attachment and internal compression
  • Removable, multi-position helmet carry net
  • Reinforced A-frame ski carry
  • Dual side wand/picket pockets
  • Quick release upper and lower compression straps
  • Developed and tested by athletes and local guides


Capacity 50 Litres (Small-Medium), 52 Litres (Medium-Large)
Dimensions 71 x 35 x 30cm (Small-Medium)
76 x 35 x 30cm (Medium-Large)
Harness Stretch woven mesh over EVA foam
Average Weight 1.462kg (Small-Medium)
1.542kg (Medium-Large)
Made From Main: 210D recycled high tenacity nylon, PFAS-free DWR
Accent: 210D recycled nylon grid NanoFly®, PFAS-free DWR
Bottom: 450D recycled polyester, PFAS-free DWR

bluesign® approved: The bluesign® system is the solution for a sustainable textile production. It eliminates harmful substances right from the beginning of the manufacturing process and sets and controls standards for an environmentally friendly and safe production. This not only ensures that the final textile product meets very stringent consumer safety requirements worldwide but also provides you confidence you'll acquire a sustainable product. Those operating sustainably - meaning conserving resources and reducing the environmental impact to a minimum - also act responsibly and innovatively. Wanting to produce sustainable goods though involves a detailed examination of all materials and processes used as well as the impact of the production on the environment. Only this holistic observation, which starts well before the actual production, will guarantee a final product that is harmless to human beings and the environment. The standard covers 5 principles:

  • Resource productivity: defines the ecological and economical goal to produce textile products of maximum quality and added value, using a minimum amount of resources as well as causing the least possible environmental impact.
  • Air emission: air emissions need to comply with strictly controlled emission limits along the entire production chain. Optimising the energy flow as well as using low-emission components reduces the CO2 load, implicating active climate protection.
  • Occupational health and safety: the health and safety of employees in the textile industry has to be safeguarded by strict guidelines. Weak points occurring locally must be detected. In accordance with the risk potential of the deployed chemical substances, corresponding occupational safety measures are mandatory.
  • Water emission: control aims at feeding back purified water into the natural cycle and causing the least possible pollution of rivers, lakes and seas. This can be achieved by the use of ecologically harmless components as well as by optimising production and wastewater treatment processes.
  • Consumer safety: includes not only the mandate for high-quality textile products without health risks, but also the assurance that all of the principles of sustainability are consistently implemented during the production process.


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