check this out. http://www.i18nguy.com/l10n/shoes.html I think in China, we use the same european system. if you google "shoe size", you might find a similar webpage that has some fun stuff on it.
This is taken from the ebay page from a yonex shirt I bought: Asian Size SS S M L XL XXL Height (cm) 157-163 162-168 167-173 172-178 177-183 182-188 Chest size (cm) 80-88 84-92 88-96 92-100 96-194 100-108 S2S (cm) 43 45 47 50 52 54 Length (cm) 69 71 73 75 77 78 Dunno if thats any use to you. Edit, you get the idea, I'm not gonna bother lining the stuff up
size of what LOL for shirt http://www.badmintoncentral.com/forums/showthread.php?t=12808&highlight=xxl