look at measurements online or try them on. I usually find it just varies fabric to fabric, but that isn't even always true I discovered. I have an ecru overdye oxford from this season in a medium that fits me very nicely...it's just a hair larger than my other non-overdye oxfords in the same size. So, I thought all the overdye oxfords would fit like that...tried on the royal blue one this weekend and it was too small to wear in a medium. Go figure.
How's the sizing on the shaggy oxfords compared to other Gitmans? I typically wear a small but every once in awhile they're a bit too tight in the chest and short in the sleeves (AW 2011 Blackwatch and the floral collab w/ The Hillside from this season).
I highly recommend this shirt. The color is awesome and the flannel lining is super soft.
I'm selling this shirt in large if anyone is interested. Was too short for me, unfortunately. Sometimes I get things without thinking/checking measurements.