Can anyone tell me where to find a plan cotton t-shirt that is made from a crisper cotton rather than a drapey style (i.e. not slubby cotton, not linen, modal etc) that is a nice flattering shape? I favour a wider neckline and a fairly boxy shape - not super fitted as I have a flabby stomach. I used to go to H&M for t-shirts but they're not working for me these days. Thanks!