Quote from: D0LL on July 04, 2013, 08:45:08 AMkid's XL's are too small on my shoulders and too big everywhere else. :/ Even guy's small sizes are sometimes too small on my shoulders (winter clothes shopping is going to be awful, I already know it)
Kids' sizes are really wonky on me too. A kid's 18-20 fits in the shoulders, is baggy and too short, and the sleeves are too short but the wrists are huge. I don't even know.
You say that smalls are sometimes too small in the shoulders, but not narrow enough elsewhere? My dad has a similar problem; he has an XL neck and shoulders, a medium waist, and short arms. I believe he wears Calvin Klein dress shirts from Macy's. They're sized by neck and arm measurements, so you can get a medium neck/shoulders and short arms (the torso will probably be shorter too if the arms are short) in an extra-slim cut. Any shirt that's sized by neck/arm rather than S/M/L should be a better, more 'custom' fit, especially if it comes in slim and/or extra-slim sizes.
A small neck is 14-14 1/2", a medium is 15-15 1/2". I think a short sleeve is 31-32" and a medium is 33-34", but I'm not positive on sleeve length. So for you I'd look for a 15-15 1/2" x 31-32" in a slim fit. It might be slightly obscure and a little hard to find, but if my dad can find a 17-17 1/2" x 31-32" it's definitely possible.

For what it's worth, I'm average men's height (5'10") with a short torso for my height (my height is entirely legs), and I have a couple small dress shirts from H&M that fit just about perfect in the shoulders while bordering on too short (both sleeves and torso), so H&M might be worth a shot. They're sized S/M/L so the fit might not be perfect, but if you can get into a store and try them on it's worth a shot. They'll also be cheaper than anything you can find at Macy's.
Target also has an 'athletic fit' that's on the slim side, but they're not very short. The standard fit (I forget what it's called)
is pretty billowy on me; I shouldn't have bought that one without trying it on.
Express is more expensive, but I've found that a small extra-slim fit fits me pretty much like a glove. Fits in the shoulders, sleeve length is spot-on, not overly baggy around my hourglass waist.
At this point I'm going through all the brands of shirts I have in my closet. Old Navy smalls are pretty long and boxy, so is Ruff Hewn. I have one by French Connection that's an XS and fits like a dream, but I got it from a thrift shop and have never looked up where I can get more or how much they might cost.
edit: I just googled French Connection and apparently it's an $80 shirt. Score!All in all, your best bet is probably a department store. You can get dress shirts during sales at fairly reasonable prices; I know my mom waits until the huge sales to shop for my dad.
Wow, sorry for the novel of a post. I hope something in here is useful.