How to Choose Daypacks

The ideal partner for climbing, ski touring and mountaineering, this 38-liter Mammut pack is light and durable. It's also water-repellent and abrasion-resistant. The pack can hold ice axes and skis.
Earn 2x card rewards Instead of 5%, earn 10% in card rewards†on REI purchases—even sale items—with your REI Co-op® Mastercard® Sep 18–28. Terms apply. Learn more
Imported.
View all Mammut Climbing Packs| Best Use | Mountaineering Climbing |
|---|---|
| Bag Style | Backpack |
| Frame Type | Internal Frame |
| Gear Capacity (L) | 38 liters |
| Gear Capacity (cu. in.) | 2,318.9 cubic inches |
| Weight | 2 lbs. 10.33 oz. |
| Fits Torso Length (in.) | 18.1 inches |
| Fits Waist/Hips | Unavailable |
| Material(s) | Polyamide/polyester |
| Frame Material | Contact EVA foam |
| Pack Access | Top |
| Number of Exterior Pockets | 3 + main compartment |
| Hipbelt | Yes |
| Reservoir Compatible | Yes |
| Dimensions | 23.6 x 11.8 x 10.6 inches |
| Gender | Men's |
| Sustainability | Contains recycled materials Product meets the bluesign® criteria |
Adding a review will require a valid email for verification
I love this pack. The chest pockets feel like I’m wearing a running vest on long approaches. It’s only a 38 liter pack but I feel like I can fit 2x the gear as my old mystery ranch due to the thought out gear and tool attachment points. Currently have gear for 3 people with 3 ropes and 3 sets of ice tools attached and bet I could fit even more if needed. Gonna be hard to ever “upgrade”
I used this pack for an overnight to try it out before getting into the snow. I am 5'11''. The torso is a little short and there is not a lot of structure to the belt, so it did not carry weight well. It did great from a water protection standpoint, keeping my gear dry in a downpour. Overall solid pack, durable attachment points. My brother was using a hyperlite pack and was envious of the durability features. I would only use it for lighter weight day-trips and mountain summit attempts. Overall, very solid pack for quick adventures. I am excited to try it out in my next summit attempt.
[This review was collected as part of a promotion.] Toller Rucksack, leicht, super Tragegefühl, mit den speziell geformten Trägern sitzt der Rucksack sehr gut am Körper, das Gewicht hängt nicht nur an den Schultern, sondern wird auf etwas auf die Brust verteilt. Vor allem bei Drehungen ist das von großem Vorteil. Leider war die eine Materialschlaufenleiste nicht gut vernäht und ist ausgerissen. Mammut hat den Rucksack aber zurück genommen und der Ersatz ist in Ordnung.
I have thoroughly inspected my new backpack and it is same quality built as always. However, my Trion 50, the discontinued model, has much better quality materials and superior design. I haven't tested it yet in the wild, but I tested it in the street. It sits rock solid on my back. The consequence is that the ventilation between the backpack and the spine is restricted and you can see that on you T-shirt. The absolute benchmark in ventilation is the Mammut Ducan Spine.
I needed this size pack for the W trek in Torres Del Paine National Park in Chile. The pack is light weight, comfortable and sleek. No water bottle pockets, but I used it with at 2-liter hydration bladder which worked great. Could have fit a 3 -liter bladder if needed. It's more than a day pack but less than a full size back country back pack. Zippers and Buckles are durable and easy to use. Good access to stuff inside, without a lot of unnecessary pockets and accessories. I'm very pleased with it.
Great bag, Its perfect for rock or ice climbing. Ive used it for both and have never felt i needed more space or that the bag was too big. Its perfect for a long pack out, and if need be you could somewhat comfortably carry two 60m ropes if you stack the bag well.
I love this pack for BC skiing and mountain adventures. I rarely use the full 38L, but the pack rolls down (like a drybag) for whatever size you need. I love the side zip for easy access inside.
Solid backpack with plenty of space and features for all your climbing gear.
Great size for ice climbing with all the attachments and built very well!
[This review was collected as part of a promotion.]


Buy a lifetime $30 membership and make a $50 purchase by Nov 12, 2026.*
$20
10% Reward*
on this and every eligible full-price item*
+
$30
Bonus Card*
valid for 30 days after joining*
=
$50
Value