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Mammut Trion Spine 35L Backpack


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Trion Spine 35L Backpack

A tricky alpine ascent requires a backpack to keep all your gear organized while also ensuring every piece of gear has a place. With the Trion Spine 35L Backpack from Mammut you can head into remote terrain knowing your pack has your back. Between the interior and exterior compartments headlamps, maps, food, and avalanche gear have their own space while the cavernous main compartment holds bulkier items like layers and first-aid kits.

If your route calls for bootpacking up an ice chute or across a rugged ridge, the reinforced ski carry on either side of the pack secures your sticks for a vertical or a-frame carry. And if you need to use your rope for safety, simply unbuckle it from the strap between the lid and the pack. Two-layer cushioning on the hip, shoulders, and back also help to create an additional layer of comfort whether you're at 1,000 or 10,000ft.

  • Versatile backpack for shorter expeditions in the alpine
  • Reinforced ski carry for bootpacking steep chutes
  • Multiple interior and exterior pockets keep gear organized
  • Active Spine Technology supports your natural gait
  • Zipper pocket on shoulder strap keeps phone accessible
  • Dual-layer foam padding on shoulders and hip add comfort
  • Buckle strap fixes climbing rope between lid and pack
  • Item #MAM01BH

35L (2135.7cu in)
Active Spine Technology
Shoulder Straps
2-layer EVA
Waist Belt
2-layer EVA
Hydration Compatible
top, front panel
[external] 1 zippered hip, 1 zippered lid, 1 zippered shoulder, [internal] 1 large internal front panel, 1 zippered mesh
Gear Loops
1 on hipbelt
Ice Axe Carry
Trekking Pole Carry
lateral, double as ski carry
10.2in x 11.8in x 24in
Claimed Weight
Recommended Use
all-mountain skiing, backcountry skiing, ice climbing, mountaineering
Manufacturer Warranty
2 years

Tech Specs

What do you think about this product?


>Rating: 2

heavy and noisy

I've used it several times

Pretty unhappy with this pack. I don't have a scale but the listed weight of this pack seems way off. I was surprised by the weight of this pack un-loaded. Loaded up with a rope, alpine rack and gear for a day or overnight the heft is pretty noticeable. The pack does carry pretty well but the weight is very noticeable. The other weird thing is that the suspension system has a pivoting shoulder strap and now every step you take there is a super annoying squeak. This may be nit-picky but after a recent 45 min hike in to a remote crag it nearly drove me crazy. tried to lube it with wd40 but can't seem to fix it.