Osprey Mutant 38l rucksack

The revamped Osprey Mutant 28l and 38l rucksack for climbers and ski tourers.

Osprey’s rucksacks are acclaimed by all kinds of outdoors fans and for a wide variety of activities. Now the brand has relaunched the Mutant rucksack for climbers. In fact, it looks like it’s been fully reinvented and redesigned.

As a brand, Osprey are brilliant at creating rucksacks that are perfectly suited to your chosen activity. They seem to think of everything, from the right storage space, to the perfect ensemble of pockets, to the best back and waist-strap design – and all fully adjustable.

My only quibble with Osprey packs is the number of straps. I find there are too many straps and I am never sure what they all do. When walking, I end up with loose straps that all need to be tied down or up otherwise they flap about annoyingly.

So it is good to see that the Osprey Mutant has somewhat fewer straps than usual. It’s not that this compromises the rucksack at all. It simply means that there is a strap for every “useful use”.

OSPREY MUTANT 38 DYNO GREENOsprey describe the climbing pack as being designed for year-round ascents. “Super light, flexible, strippable and seasonally versatile.”

It could be used for rock climbing in summer or ice climbing and ski touring in the winter. I can also see it being a useful hiking pack in both summer and winter.

Features include:

  • Top lid access
  • FlapJacketâ„¢ top cover for use without lid
  • Removable top lid with dual compartments
  • Underlid rope carrying system
  • Integrated ski/climbing helmet storage
  • Dual ToolLockâ„¢ for ice axe attachment
  • 15mm side compression straps
  • Abrasion-resistant PU texture to front panel
  • Glove-friendly buckles
  • Sternum strap with emergency whistle
  • Integrated gear loops on hipbelt
  • Internal hydration sleeve
  • Internal key attachment clip
  • Removable HDPE framesheet with T6061 aluminium stay
  • Sewn in hipbelt, reverse wrap stowable
  • Side ski carry

( I said that details are Osprey’s big thing!)

The 38l M/L pack weighs 1.19kg

On test: Osprey Mutant rucksack

On testThis is a super lightweight climbing pack that weighs little more than the average running rucksack. Yet it still looks and feels fairly durable and robust.

If you want to save on weight (which many people do) it’s a good choice for a done-in-a-day winter climbing or skiing outing, or for a summer hike. With 38l (or 28l) it’s unlikely you’ll use if for a multi-day trip unless you have a super small tent and sleeping bag.

The design is simpler than I’ve seen with other Osprey packs but it still offers lots of practical clips, compartments, accessories, a helmet holder, a detachable hood and a removable back panel.

The pack is also brilliantly shrinkable so if you want to carry less you can compress the rucksack down very easily. One very useful asset is being able to remove the lid yet still keep the top of the rucksack secure and weatherproof with a neat clip.

New ice axe clips are simpler than previous clips and easier to use. The rucksack is also very comfortable to carry. The ergonomically formed back plate is superb and the waist-strap is very well designed.

Another bonus is the waist-strap that can be clipped back to keep the padding out of the way of your harness and rack but still leaving the strap and belt in place. Even when the strap is clipped back the rucksack still feels secure and comfortable on the back.

Adjusting the pack to fit is also easy and offers lots of versatility. The compression straps at the side have clips at the top for easy release. I’m not sure how many people will use these and I wonder if thy were strictly necessary in a pack of this size.

I like the 38l so much that I might may even buy the 28l version for summer use

Osprey Mutant 38 RRPs at £100 while the Osprey Mutant 28 RRPs at £80. Tiso sell the Mutant 38l rucksack for £99.



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