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Mammut Meron IN Hooded Down Jacket - Men's

up to 35% Off
sale $291.85 - $449.00

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  • Black, XL
    sale $291.85
  • Black/White, L
    $449.00
  • Black/White, M
    $449.00
  • Black/White, S
    $449.00
  • Black/White, XL
    $449.00
  • Black/White, XXL
    $449.00
  • Ice, L
    $449.00
  • Ice, M
    $449.00
  • Ice, S
    $449.00
  • Ice, XXL
    $449.00
  • Marine, L
    $449.00
  • Marine, M
    $449.00
  • Marine, S
    $449.00
  • Marine, XL
    $449.00
  • Marine, XXL
    $449.00
  • Spicy, L
    $449.00
  • Spicy, M
    $449.00
  • Spicy, S
    $449.00
  • Spicy, XL
    $449.00
  • Spicy, XXL
    $449.00

Why We Like The Meron IN Hooded Down Jacket

The Mammut Meron IN Hooded Down Jacket brings a lot of warmth and little weight to the high altitudes of our mountaineering missions and trekking trips. It boasts one of the the highest fill ratings around for incredible loft that warms us up without weighing us down. Its 900-fill down is so lofty that the jacket compresses into its own pocket for compact packing. Complementing the ultralight insulation, the jacket's ripstop shell is also lightweight and ruggedly resistant against light moisture like snowflakes and spray.

  • Hyperlight down jacket designed for mountaineering and alpinism
  • 900-fill down insulation is incredibly light and lofty
  • Toray ripstop shell is water-resistant to shed light moisture
  • Hood adjusts over beanies and helmets
  • Backpack-and-harness-compatible side pockets
  • Jacket stows inside side pocket
  • Item #MAMU561

Material
100% nylon ripstop, DWR
Insulation
900-fill down
Fill Weight
140g
Fit
regular
Length
hip
Center Back Length
[medium] 30in
Hood
adjustable, helmet-compatible
Pockets
2 backpack- harness-compatible zippered, 1 internal zippered
Claimed Weight
14oz
Recommended Use
backcountry skiing, backcountry snowboarding, backpacking, hiking, ice climbing, mountaineering
Manufacturer Warranty
2 year

Tech Specs

What do you think about this product?

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>Rating: 3

Mammut Meron IN

Familiarity:
I've put it through the wringer
Fit:
True to size
Size Bought
Large
Height
6` 3"
Weight
175 lbs

This review is for the older version of this jacket. The older version had 105 g of down, the new version has 140 g of down. The other features look to be identical. GOOD: waist cinch, hood cinch, inner pocket, elastic sleeve cuffs- all features are there. Meron has more loft and warmth than popular 3-season puffies (Cerium LT, Patagonia Down Jacket, etc). Loft is comparable to FF Eos. Euro cut is good for slim folks like myself; the Meron fits trimmer in size L than Cerium LT. Plenty of length in sleeves and body. I typically layer the Meron over base layer, slim-fitting fleece, and Patagonia Houdini (size L) wind jacket. I typically layer the Meron under my Gore-Tex shell. Toray fabric (apparently 7D Toray Airtastic, ~20g/m2, although it is not branded as such) is impressively windproof and water resistant. Airtastic is used in many high-end jackets in a variety of applications. BAD: The 7D Toray fabric is fragile. I've already patched tears due to glissade and zipper snag. The Meron is intended not so much as an everyday, 'daily driver' puffy, but rather a specialized 'above the treeline' piece. The problem is that 105 g of down is more in range with 3 season puffies (like the Eos) and alpine belay parkas typically have more like 150-180 g. The Meron is kind of a tweener that is not quite warm enough as a cold weather stop piece, but too delicate for use as a 3 season puffy. Mammut corrected this by adding more down to the new version. If you buy this jacket, check down distribution first thing. I may have a dud, but the down distribution in my Meron is actually pretty bad in the sleeves. Some chambers are overstuffed and some have barely any down. I have multiple noticeable cold spots in both sleeves. I tried to show this in photos- dark spots have no down. Overall this jacket works for my needs (Cascades summits) but I have some quibbles. Fix the down distribution, swap out Toray for tried and true Pertex (~35 g/m2) and this would be my perfect jacket.

This
>Rating: 5

10 stars!!

Familiarity:
I've used it once or twice and have initial impressions
Fit:
Runs small
Size Bought
XL
Height
5` 8"
Weight
168 lbs

I've owned many high end down jackets during my adult life and this Mammut is by far the best!! I usually buy size large, however, since it was noted that this jacket ran small I purchased an XL. It fits well and is not too big; I am able to layer it with a base layer and/or a heavy sweatshirt. Very warm and light weight! At my age (71), warmth is more of a factor than fashion when I purchase a jacket. Although the Backcountry rep suggested other jackets, I decided on this one. Up until today, April 12, 2020, I have worn it once and amid the Easter holiday and COVID quarantine, there was a 55 degree drop in temperature overnight as well as snow in Golden, CO. I had to take my dog out for a walk so I pulled out my Mammut, threw it over a cotton t-shirt and braved the elements. I stayed warm, dry and protected against the storm and frigid Spring temperatures. I couldn't be any happier with my Mammut and highly recommend it!!

>Rating: 5

Extremely Warm, Lightweight

Familiarity:
I've put it through the wringer
Fit:
True to size
Size Bought
Large
Height
5` 11"
Weight
185 lbs

This jacket is the lightest down piece I have ever worn. It feels like you don't even have a jacket on at all, yet still is extremely warm. I've used it as mid-layer on bitter cold days at the mountain and it is amazing. It also packs very small. I love the depth of the pockets and seamless zipper design on the side pockets, which is very stylish. For how much down is packed in this thing, you would be surprised on how light it is. If your looking for a very lightweight down jacket, I would highly recommend this one. It's definitely a must have for me for warmth, and weight.

>Rating: 5

warm and packs so small

Familiarity:
I've put it through the wringer
Fit:
Runs small
Size Bought
xxl
Height
6` 2"
Weight
195 lbs

I finally got rid of my old puffy and got this jacket in october. it's really light, and I definitely would not want to beat it up, but for a belay parka or puffy to throw in my pack for ski touring this is by far the best jacket I've ever worn. it's super warm, I've used it to belay well be low zero F, but it still packs down to about the size of a small cantaloupe melon. I always get my puffies large to fit over another jacket, this runs a little small though, I bought a size bigger than normal and its perfect.

>Rating: 5

Ultra Light

Familiarity:
I've put it through the wringer
Fit:
Runs small
Size Bought
XL
Height
6` 0"
Weight
175 lbs

I have worn this jacket to the summit of Mt. Rainer and Mount Kilimanjaro. It is incredibly light and when "every ounce counts" this jacket will give you warmth without adding the weight that most other jackets give, thus giving you an advantage over other climbers. However, because the material is so thin, it is prone to rips. I have patched to very small rips with Gorilla Glue. DO NOT wear this jacket when walking through blackberry bushes or a rose bushes or hug a cactus while wearing it...but why would you be doing that in a high-altitude parka anyways? And since you should be wearing this over all your clothes, get a larger size than you expect. I got XL, and I'm a normal sized guy who wears Medium tshirts. I needed XL to fit over all my other jackets. Summary: I love it, and when I use it for what it is intended for (super cold summit days) it is PERFECT.

>Rating: 5

Great gear for cold days

Familiarity:
I've used it once or twice and have initial impressions
Fit:
True to size

Always wanted an arrow in my quiver for those really cold winter days. Last weekend was one of those days 15F in Colorado mountains. So tried Meron Down for my backcountry ski trip. It takes a bit of faith that this would work - it is very light and almost feels like its not there. Wore it with just a baselayer but it kept me warm - too warm in the trees - so had to unzip. above the treeline - it felt comfortable zipped up , and on the ridgelines and the top of the peak - it dropped the hood and zipped up all the way - it did the trick. I don't think this is "one jacket to rule them all" - since i didnt feel comfortable skiing down with it - felt it wouldnt hold up if i hit a branch - so put a hardshell over it all said and done - i am pleased for it - very light , very warm and reasonably stylish

>Rating: 5

Light and warm

Familiarity:
I've used it several times
Fit:
True to size
Size Bought
xl
Height
6` 2"
Weight
180 lbs

First off full disclosure, I'm a sales rep for Mammut. I recently got a Meron IN for myself. Nearly ten years with the brand this is one of my favorite Mammut pieces ever. So warm and in fact too warm for my everyday Colorado front range jacket. But wearing a t-shirt underneath is all you need for temps around freezing. Layering up for cold outdoor pursuits is great and the weight is impressive, the no bulk feeling is awesome. Fit is spot on and runs true to size with the typical longer sleeve length so no gap between a glove. fabric is super cool and the photo does not do it justice. Get one and you won't be disappointed

>Rating: 5

Really great parka

Familiarity:
I've used it once or twice and have initial impressions
Fit:
True to size
Size Bought
medium
Height
6` 0"
Weight
155 lbs

I'm mainly writing this review because there are none for this jacket anywhere as of yet and this jacket deserves one. First off, this jacket is insanely light. It has something like 110g of 900 fill, which I was concerned wouldn't be warm enough so I didn't take the tags off until I walked around in 25 degrees with a t-shirt underneath. Trust me, it's warm enough. Secondly, the fit is awesome. I am 6' and 155 lbs and it basically feels like it was tailored for me (medium size). It looks and feels fantastic. I could see a larger person around the middle not being as psyched on it, so keep that in mind. I'll write a follow up after more use.