The best T-Shirts I've found in this country are the 'Old Guys Rule' ones.
I picked up half a dozen in their sale about four years ago at £10 each and I must say I'm really impressed.
Nice thick cotton, proper sizes, and when you lie them flat to iron them the seams line up perfectly. I hate cheap T-Shirts where the panels shrink at different rates and the side-seams twist round the back. Makes them a nightmare to iron.
I wish they sold them without any logos or 'funny' sayings like 'Still crazy after all of these years'.
Graham
P.S. Yes. I iron my T-Shirts. Sad, isn't it?