I'm a shorter guy (around 5'3'') and on the thinner side, and I've been having a hard time finding shirts that fit me (or that I at least think fit me). Today I bought three polo shirts and two dress shirts, buying size "S" (the smallest men's size) when I could (these are European sizes, if that makes a difference). I tried on one of my size "S" cotton polos, and to me it looks too long (the hem of the shirt extends lower than the split in my pants). I didn't think I was that short a guy. I guess my options are to either shrink the shirts or tuck them in when I wear them (the latter of which I'm not sure I want to do because this seems a little nerdy to me). About shrinking the shirts, though, I'm afraid of doing so too much, because then the shirt might be too small, and I wouldn't be able to take it back. Can someone give me a general rule on how much cotton shirts shrink in the washer and dryer (e.g. how much when on the highest heat setting on both the washer and the dryer)?