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Mammut Light Speed 25

The Light Speed 25 has been discontinued. If you're looking for something new, check out the best daypacks for 2022.


Price Historic Range: $54.93
Reviewers Paid: $62.00-$115.00


2 reviews
5-star:   2
4-star:   0
3-star:   0
2-star:   0
1-star:   0

Have had this pack for years and love it. Elastic and straps in all the right places--I can actually jog with it.

Rolls small in my luggage, very light weight 660 g, so it is my standard travel daypack. My carry-on for fishing trips. Just small enough to fit under my one-size-too-large packable rain jacket. Mesh pads at all contact areas so not clammy.

Superb materals and workmanship: no sign of wear yet. Want to buy 10 more now for all my family. Where?

Design: Rucksack
Size: 25 L
Number of Pockets: 2
Max. Load Carried: 30 lbs
Height of Owner: 71 inches
Price Paid: $115

The Lightspeed 25 appears well-constructed, and online info does not give some of the more useful details. I haven't hiked with it yet, but plan to later this month. The hydration system, provided by Sigg (also Swiss like Mammut) and will best fit a Nalgene 32oz canteen and drink tube, which are readily obtained from REI or other USA gear sources. (The 32oz canteen actually holds 42oz of liquid.) Sigg's intended use of the bladder pocket is to suspend a rigid bottle upright, up against the back inside the pack, drinking from a straw-to-tube.

Despite its lack of a framesheet or traditional back panel, this pack has a padded, wicking center panel that runs from the tailbone up to the shoulder blades, and is about 5" wide. The weight advantage of the pack is maintained with some cushioning with this feature.

This pack will work for day climbs + short ultralight trips of 2-4 days. I have customized it by sewing in a D-ring at the center top inside to suspend a 4L dromedary for full-on day climbs on Colorado's fourteeners. It's absolutely worth the $62 REI is asking until it is closed out.

Design: rucksack
Size: 1530 ci
Number of Pockets: 2
Max. Load Carried: 20
Height of Owner: 5'11"
Price Paid: $62

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