Warm and a nice profile. Mediums fits me perfectly. I'm 5'11", 162 lb in the morning, I think an average build with 40-41" chest, 31" waist, and 33" long arms. There's a lot of comments about fit being too small so I tried a large at first. Way too big, floppy arms and baggy everything. Switched with a medium that I typically wear, much better. A little extra arm length (could accommodate 34"-35") and chest room (could accommodate 43"-44" I think). Could seemingly accommodate a waist of 34-35 but that's a bit harder to gauge.