Down Jacket
Mammut Meron IN Hooded Down Jacket

$449, 14 oz. (men’s medium)

Sizes: men’s S-XXL, women’s XS-XL

As gray clouds hovered low overhead, the air still carried the dampness of the day’s rain, and a chilly wind whipped through our campsite by a lake in the Wind River Range, I zipped inside the Mammut Meron IN Hooded Down Jacket, pulled the hood up—and felt warmth immediately surround me. Fat but exceptionally light and packable, this puffy vaulted to the top of my list of insulated jackets. Here’s why.

I found the Meron more than warm enough on cool, wet, and windy evenings and mornings around 40° F in camps on an August backpacking trip in Wyoming’s Wind River Range. I also wore the Meron IN Hooded Down Jacket in similar temps backpacking five days through Washington’s Pasayten Wilderness in September, with mostly dry weather but one cool, damp morning of light rain, and found I didn’t always even pull the hood over my head (I also wore a wool hat).

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The Mammut Meron IN Hooded Down Jacket.
” data-image-caption=”Testing the Mammut Meron IN Hooded Down Jacket in the Pasayten Wilderness.
” data-medium-file=”″ data-large-file=”″ width=”900″ height=”600″ src=”″ alt=”The Mammut Meron IN Hooded Down Jacket.” class=”wp-image-47944″ srcset=” 1024w, 300w, 768w, 150w, 1200w” sizes=”(max-width: 900px) 100vw, 900px” data-recalc-dims=”1″ />Testing the Mammut Meron IN Hooded Down Jacket in the Pasayten Wilderness.

At 14 ounces, for someone who doesn’t get cold too easily, this puffy jacket would deliver enough warmth (over one or two base layers) for temps around freezing; people who do get chilled easily may find it warm enough for 40° F and good over a lighter insulation layer in freezing temps.

Stuffed with RDS (Responsible Down Standard)-certified, 95 percent 900-fill-power goose down and five percent goose feather filling, the Meron boasts a warmth-to-weight ratio matched by very few down jackets. The sewnthrough construction, which stitches the outer, shell fabric to the inner, liner fabric—common in ultralight jackets made for three-season temperatures to reduce a jacket’s weight—creates visible boxes of
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