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Osprey Packs Mutant 38L Backpack


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    • Blue Fire


    4 Reviews


    Built for true alpine style pursuits.

    Osprey's Mutant 38L Backpack carries your essentials whether you're on a technical alpine objective or running laps on ice climbs. Complete with the necessary features required for light and fast missions, the Mutant 38L strips itself of the extra components of a typical technical pack. Reinforced A-frame ski carry holds your skis securely and the 3-point haul system distributes the weight of the pack evenly when clipped at an anchor or hauling up a climb. The hip belt features two gear loops to clip and carry equipment that can be easily accessed when wearing the pack while climbing. Ice tool locks safely stow a set of ice tools, and an included helmet carry attachment conveniently holds a climbing helmet during the approach.

    • A streamlined pack hauls your gear on light and fast alpine objectives
    • 38 liter capacity is perfect for long, single day missions
    • A frame ski carry securely holds your planks while straddling a ridge
    • 3-point haul system fastens pack to an anchor on multi-pitch climbs
    • Hip belt and ice axe gear loops allow for additional gear storage
    • Helmet carry stores your helmet when hiking back to the car
    • Item #OSP00BC

    Tech Specs

    [main & accent] 210D nylon, [bottom] 420D nylon
    [small/medium] 36L (2197cu in), [medium/large] 38L (2319cu in)
    removable Atilon sheet lamination, HDPE top stay
    Shoulder Straps
    laminated EVA
    Waist Belt
    Hydration Compatible
    2 zippered lid
    Gear Loops
    1 front panel daisy chain, 2 waist belt gear loops
    Helmet Carry
    Ice Axe Carry
    Weight Capacity
    29 x 13 x 12in
    Claimed Weight
    [small/medium] 2lb 10.7oz, [medium/large] 2lb 13oz
    Recommended Use
    ice climbing, mountaineering, trad climbing
    Manufacturer Warranty

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

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    Great pack even when fully loaded

    • Familiarity: I've used it several times

    I was split between this pack or the Mystery Ranch Scepter 35. I went with this one because my larger 70 liter pack is osprey and the osprey fit for me is very comfortable for my hips and shoulders. And this was no exception.

    I had it fully loaded with my tools, crampons, slings, biners, puffy, food, 70m rope ,and whatever else I threw on it and there was very little movement when traveling and moving under trees on our approach. It felt very comfortable and natural on my body and made the approach not as grueling. The amount you can stuff in here as well is very impressive

    Climbing with it on felt alright. I don’t like climbing with packs on but it wasn’t too bad with this pack.

    I’m giving it four stars because all of what I said is based on my initial impressions. The amount of straps can be a bit of a headache when fully loaded but when you get an osprey pack, it’s bound to have straps on straps. And the top lid (brain lid, whatever you want to call it) will sit funny if your pack isn’t loaded up.

    All in all I very much enjoy this pack. It serves its purpose well and does it very comfortably.

    The photo is the pack fully loaded and what it looked like out to the approach (rope, tools/gear, food, etc).

    Great pack even when fully loaded

    More Please!

    • Familiarity: I've used it several times

    Awesome Pack! This pack is nice and lightweight! It's the perfect pack for those long(or short) approaches to the crag, summiting peaks or just going for a casual hike.

    The frame and waist moves well with your body as you're climbing up and over obstacles. It felt comfortable on my back even as I hiked 16 grueling miles completely packed down.

    I always wanted to see more from Osprey geared towards climbing more and here is what I was looking for! Oh, and the helmet carrier on top is a really nice feature! Keeps you from having to strap it onto you pack and hearing it smack around.

    Very happy with the Pack! Keep 'em coming Osprey!

    More Please!

    Love the previous version of this pack. It had a zippered lid, and a rope AND helmet carry. I see no mention of a rope carry strap in this description? Are they relying on the buckle lid to retain a rope alone?