Patagonia Nano Air Ultralight jacket

mtwarden

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Kind of a mouthful, but pretty excited about this jacket. I have a Patagonia Nano Air Light hoody (actually two) that has been discontinued for some time, but close to a cult classic for an active insulating layer for cold to cold weather.

The" Ultralight" differs from the "Light" in that it has half the insulation— 20g/m2 vs 40 g/m2. Both I would consider very lightly insulated, 20 g/m2 is very (or ultra :)) light. It is also full-zip where the Light was a pullover.

The insulation is "Full Range" which is Patagonia's labeling of Toray 3deFX insulation. If that sounds familiar, it should as I've reviewed three different jackets that utilize it—two from Outdoor Vitals and one from Kuiu.

I've found it to be the most efficient insulation in regards to weight to warmth and thus far the Ultralight has lived up to that.

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I have one that's an old pull over. It is a great piece for layering, I don't know how it is so warm when layered under a puffy maybe it helps with wind blocking but its great.
 
I know this is ultralight, but how would you compare the insulation to the black diamond alpine start insulated?

Different insulations and different weights, the UL uses lighter insulation.

The biggest difference really is the outer fabric; the Alpine Start uses a pretty wind resistant fabric, the UL is very breathable.
 
I'm assuming the zipper is one of the tiny teeth versions since it's ultralight.

I have a Patagonia fleece/shell vest with a very robust full size zipper that will last forever but my light (or ultralight) Patagonia vest has the tiny zipper which has essentially died. I still love the vest and have considered adding velcro tabs for closure which causes my wife to pull her hair out. "Just buy another one, you cheapskate! You've worn it for 15 years!"
 
BTW the older pullover version really saved my bacon several winters ago. We were on a week long snowshoe trip across the Bob Marshall Wilderness and I get swept at creek crossing.

Wet up to my neck. I wrung out my base layer, put it back on, grabbed the pullover out of my pack and started hiking my ass off. I warmed up in about 20 minutes and after an hour or so, by base layer was almost totally dry.

Great warmth for the weight, and the breathability allowed the moisture in the base layer to “cook off” with my body heat.
 
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