• Mammut - Trion Pro 50+7L Backpack - null
    Mammut - Trion Pro 50+7L Backpack - 3/4 Back
    Mammut - Trion Pro 50+7L Backpack - Back
    Mammut - Trion Pro 50+7L Backpack - Back
  • Mammut - Trion Pro 50+7L Backpack - Back
  • Mammut - Trion Pro 50+7L Backpack - null
  • Mammut - Trion Pro 50+7L Backpack - 3/4 Back
  • Mammut - Trion Pro 50+7L Backpack - Back
  • Mammut - Trion Pro 50+7L Backpack - Back
  • Mammut - Trion Pro 50+7L Backpack - Back
Mammut - Trion Pro 50+7L BackpackView Larger Image

Mammut Trion Pro 50+7L Backpack

Temporarily Out Of Stock

Don't get too bummed. This item is on the way and will be available for purchase as soon as it rolls into the warehouse.

Can't wait? Consider one of the other Technical Daypacks we have in stock.

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Tech Specs

[body] 420D nylon ripstop, [reinforcements] 840D ballistic nylon
50 + 7L (3051 + 427cu in)
Motion Butterfly DLT
Shoulder Straps:
high-density EVA
Waist Belt:
yes, padded, removable, webbing
Hydration Compatible:
1 lid
Gear Loops:
Ice Axe Carry:
yes, 2
Trekking Pole Carry:
yes, side straps, front straps
Claimed Weight:
3lb 12oz
Recommended Use:
alpine & expedition
Manufacturer Warranty:

Intelligently put together to keep you prepared.

Load up the Mammut Trion Pro 50+7 Backpack before embarking on an ambitious big-wall ascent or alpine climb. This lightweight, made-to-move pack boasts the intuitive design and features you need to play it safe and smart while adventuring at altitude, and it accommodates all the hardware you need to navigate an ice flow broken by granite outcroppings. The Motion Butterfly DLT suspension spreads the load evenly across the high-density EVA foam back panel, shoulder straps, and hip belt, while the front and side compression straps lock your load down to prevent moving when you're covering ground or packing away the vert.

Mammut made the Trion from water-resistant nylon fabrics, so your gear won't get soaked in a shower, and made the Trion compatible with hydration reservoirs, too, so you don't get dehydrated on your alpine missions. While it carries comfortably, it's unmistakeably an alpine pack, and it has features you'd expect like a webbing hip belt that can be used in place of the padded offering, a top rope strap to secure your line, and a removable, seam-taped lid that you can take off to lighten your load. There are also two secure ice-axe carriers, sky carry options, and gear loops to accommodate whatever gear you need for your current climb, so you're never caught out by the changing conditions that are a feature of alpine environments.

  • Water-resistant nylon ripstop with ballistic nylon reinforcement
  • Motion Butterfly DLT suspension
  • Removable padded hip belt
  • Padded EVA back panel and shoulder straps
  • Spade webbing hip belt
  • Adjustable, removable, and waterproof lid
  • Dual ice-axe carriers, ski carry, daisy chain, and removable rope strap
  • Hydration compatible
  • Reviews
  • Q & A


  • Familiarity: I've put it through the wringer

This is advertised as a alpine pack; however, I have used it in many different disciplines . The Materials are sturdy and over all not a bad pack for the price

Unanswered Question

Are the side compression straps on this pack long enough to accommodate a rolled up 3/4 length foam sleeping pad? Thanks!

Comfortable and works well

    I got his for my brother who does a lot of hiking and climbing. He is my height 6' 2'' and the bag fits both him and me well. He has taken the bag on a 2 week trek in the himalayas, traveled in Asia and Europe and he has had no complaints. The back panel access was very handy according to him...I had doubts about the pack but he loves the pack so far.

    First field test

    • Familiarity: I've used it once or twice and have initial impressions

    Just got back from a short backpacking trip in the Rockies and it performed well. It fit well and was easy to adjust. I loved the back panel access as it made it extremely easy to get anything out of my pack in seconds. I found the hip belt to be slightly lacking in padding as my hips were sore after a couple days but this pack isn't designed to go backpacking. I will be using this pack for the next few years in college in the Canadian Rockies, Nepal, and more.

    I haven't used the pack in the field yet, but the Mammut Trion Pro seems very durable, well made, and I think it looks good too! I just walked around a bit with some weight and it was comfortable and fit nicely. One thing that may be a downside on longer expeditioins is that it probably wouldn't be the most comftorable pack for hiking long distances. That's not what it's made for though, and I'd say it would still do a pretty good job. I bought the Trion Pro for college as I as taking Outward Pursuits to become a guide and will need it for Patagonia, Nepal, and all my other camping adventures in the Canadian Rockies where I will be going to college. I love the back entry! I could get my sleeping bag out easily out of the bottom without getting anything else out. Everything is easy to see and grab when you're on the go. I will have to give an update after I use it a bit more in Colorado, but so far so good!

    Nice pack

    • Familiarity: I've used it several times

    I bought this for sport/trad climbing with hiking/backwoods camping also in mind. I'm glad I did! This thing is massive! The back access to the main compartment is amazing. Such a breeze getting gear in or out without having to unload the whole pack. It's really what sold me on it lol. The standard mammut "head" pocket is huge. Great for snacks or other little things. Plus you get a decent size mesh pocket on the underside as well. The front face pocket is good. It's long and can hold decent sized objects. Anything you stash in there will take up more of the room in the main portion though. Which really isn't that much of an issue with the added compression straps. The daisy chain is a nice touch and the ice axe carriers double for a stick clip or walking stick holders when not in use. The padding is comfortable on the shoulders and back. It's firm padding but with time it will soften up a bit.

    All in all it's a solid pack, that can carry a ton of crap for any activity. Add a discount to this and your set.