Mammut Kento Jacket - Men's

Compressible waterproof protection for when you need it most.

The Mammut Men's Kento Jacket provides waterproof protection you can easily pack down so you can take it anywhere you roam, whether you're mountaineering, multi-pitching, or alpine climbing. Its DryTech Premium shell gives this jacket superior waterproof protection that's surprisingly breathable to keep you comfortable when you're working hard. Underarm zippers offer a lot of airflow and ventilation while the pre-shaped sleeves ensure excellent coverage and mobility while you're climbing. Mammut also added an adjustable hood, a drawcord at the hem, and zippered pockets at the chest and sides.

  • DryTech Premium 2.5-layer shell (20k)
  • Fully taped seams
  • Regular fit
  • Zippered underarm vents
  • Adjustable hood
  • Pre-shaped sleeves with hook and loop cuffs
  • Adjustable hem with drawcord
  • Water-resistant front pockets
  • Bluesign approved fabric
  • Reviews
  • Q & A

Awesome jacket

  • Familiarity: I've used it several times
  • Fit: True to size
  • Size Bought: l

Light, nice looking..


  • Familiarity: I've used it several times
  • Fit: Runs small
  • Size Bought: XL

I have a very high opinion of Mammut gear so it pains me to write this review. There are definitely some great traits to this jacket, but a few things you should be aware of.

I'll start with the good. The fit is unmatched for an athletic build. I lovethe torso and arm length keeping my cuffs and butt protected. And, the slim cut in the waist fits great unlike a lot of jackets that feel like you are wearing a trash bag. The jacket is very lightweight and it has held up very well to the rain, keeping me dry during 2 days of downpour on the Oregon coast.

The bad: The hood drawstring has already broken after only 2 months. I was cinching up the hood when the tab at the bottom of the cord completely tore away from the drawstring and pulled partially out of the hood. I managed to fish it back through the hood and tie a knot at the end to keep it from coming loose, but I can't believe it failed so easily and so soon. Not to mention the fact that it doesn't look as good having a loose cord with a know it it hanging out the front of my jacket.

Beware that the jacket acts very strange around saltwater. I wore this during a windy storm at the beach and the salt water spray from the ocean made the jacket pucker up like the dimples on a golf ball. It should be noted that it didn't wet out, I stayed dry the entire time, but it shrunk and puckered up. This is the only jacket I've ever seen do this and it was a little disconcerting. I don't know if that will effect the long-term productivity of the garment, but it definitely didn't look good.

Finally, the light weight of the jacket does appear to have a durability trade-off. After only two months of very intermittent wear I have already found a small hole in the back of the jacket.

Unanswered Question

do you know the difference in the length of the sleeves between a Med and a Large? is there a difference?

Unfortunately Totally Disappointed

  • Familiarity: I've used it once or twice and have initial impressions
  • Fit: Runs small
  • Size Bought: Large

I was excited to get this jacket and use it as my backcountry touring shell since it is so light. Unfortunately that lightness also comes with being ridiculously flimsy. I wound up with two large tears in the jacket from one run down Mount Wuh in Rocky Mountain National Park. Granted the trees were tight, but I can't accept that it is reasonable for a jacket that is marketed as expedition worthy to be so fragile.

Unfortunately Totally Disappointed
Unanswered Question

Just pointing out that the claimed weight is 12.9 grams... I assume you mean ounces?

Would this be a suitable jacket for Alpine Ski Touring? I am looking for a lightweight, waterproof outer layer.

Yes. I'm a jacket slut and the Kento just keeps performing flawlessly.

Unanswered Question

a reviewer indicated the hood is helmet compatible. i wanted to confirm. is that pretty-much any helmet or just low profile.
thank you

I second Tommyboy!

  • Familiarity: I've put it through the wringer
  • Fit: True to size
  • Size Bought: Medium

This jacket is my go-to for any activity, it is almost always in my bag (this thing packs down SMALL), and has saved my butt enough times that I can not count them on two hands...
The Kento jacket is light, very light. It packs down incredibly small... and is breathable enough that during a warm summer rain you aren't exhausting yourself whilst staying dry. It has two massive vents under the arms to allow adequate ventilation once the perspiration begins.
Mammuts DRYtech is amazing, it keeps water out but lets your skin breath naturally, water simply beads up and rolls off. During the colder months it can also be used as a windbreaker, it doesn't allow wind to break through, and if paired with a nice 1/4 zip jacket underneath, you're good to go all day. The hood expands large enough to cover a helmet, and is equipped with a small visor to keep the rain out of your eyes. The wrists have velcro cuffs to tighten the opening and the the head/waist have adjustable cinching straps.
The Kento has two large abdominal pockets and a large Napoleon pocket on the chest.

I will admit, for what it is (which isn't much) it is expensive, but when you are in the middle of your climb or approach and that freak storm hits, you'll be glad you paid the money for this lifesaver...

Oh yeah, it looks good too!

This Jacket is the BOMB

  • Familiarity: I've put it through the wringer

This jacket is awesome! It has kept me sheltered from the vicious winds on top of a mountain ridge at 11,000 ft. in the Unitas. When walking around my neighborhood in a thunderstorm not one drop of water found itself inside the jacket. This jacket is also super breathable and you never get to stuffy while wearing it. This is a great jacket and I would definitely recommend getting it.

Awesome review! Where in the Uintas did you guys head to?

We started at the Pass Lake Trailhead and hiked up to Lofty Lake. It was a great hike with awesome views.