was4778827 wrote an answer about Mountain Hardwear Mountain Tech Jacket - Men's on October 10, 2012
M fit great. Enough for layering but not baggy around the midsection if you don't need to layer. I tried TNF's denali and it was too much material. This jacket is definitely slimmer than the denali plus it's windproof. It is very breathable; felt it from the moment i put it on. A size small would have been a bit tight, but if you want to use this as a baselayer then size down.