User Review: Patagonia Men's Nano Puff Pullover

Very good, packing into its own pocket is a big plus and sporting the Patagonia and styling and name is an ego boost. I've owned this now for four months and live in Upstate New York. Below 30 degrees with a merino long sleeve base layer, it was not warm enough for me to be comfortable, above that it's perfect.

I used this one warm day snow tubing. Since it was too hot, I clipped it on my belt. When the sun went down and it started getting cooler, I unclipped and put it back on...Still not as warm, light, and ventilation capable as my Mont-bell Thermawrap which is a true winner even down to about 20 degrees or more with a merino L/S base layer underneath-I swear the thing is alien technology!