It depends... I wear S and/or M. Some M shirts are just too baggy and I have plenty of baggy shirts so I buy S XD Sometimes S is for tiny people [and I'm not slim o.O] so I go for M... yes, very complicated XD
oh wow... that's really tall. I'm 1.80 and shirts are always not long enough. I still have no idea which motives we'll do and which sizes (mostly depends on the printing company-actually). I think those things will be clarified on Friday, when I meet with Minnie (the organization fairy).