Rated5out of5byPartdavidfromSurprising function and qualityIt's too light and packable to leave behind and works great to keep me warm in a really wide variety of temperatures. I feel chilly in most buildings and the nano puff is perfectly comfortable to keep on there; I haven't found temperatures low enough in my area to require additional layers, though I plan to put that to the test this season.
I don't really understand how something seemingly so thin can keep you so warm; nor how it can not overheat you when it's not so cold.
Date published: 2012-10-23
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