Ben D Skiwrote a review of Patagonia Nano Puff Insulated Jacket - Men's on February 13, 2016
Familiarity: I've put it through the wringer
Fit: True to size
I can't believe I waited until 2015 to buy one of these!
The Nano-Puff replaced a 10 year old Marmot DriClime jacket, and similar to the DriClime, my impression is; this is a piece that everyone who enjoys the outdoors, especially in cooler climates should own.
Feather-light, incredibly warm, and versatile. The fact that it packs down to the size of two Big Macs (with only a fraction of the guilt) guarantees the Nano will be "essential adventure gear" for years to come!
Sizing is actually very similar to the Marmot DriClime jacket, and if it weren't for my love of the hops, I could easily manage a medium. I went with a large in hop-hunter green, and the fit is relaxed for my 5'-6" 170lbs, which is infinitely better than having to suck my gut in all the time.