I know there's a thread around here already BURIED somewhere.... anyways: I wear a shirt.woot Mens Small because the medium is well baggy. Are the smalls here tighter at the shoulders/biceps? Nearly identical? I just don't want to buy three smalls and have the sleeves tear when I flex. lol. You can laugh but I've ruined a couple nice dress shirts that way. Granted tshirts flex, but... I still don't want them tight.
I wear a shirt.woot MS as well and comparatively, I find the TeeFury (Alstyle) shirts a bit looser.
but if you go small and wreck the shirt, then you can't even wear it baggy.
Wash the shirts in super warm water and they shrink nice and good.
It has worked out fine for me.