..there's also the question of the variety of sizes in different countries...If you buy a S- sized shirt from Italy, it's about XS or XXS in Scandinavia, and something else in the Us..(i don't know what).
This is because of different measurement systems in different areas.
--> if it isn't too complicated, be sure to mark as detailed measurements also in inches/cm's as possible, not just "S", "M", etc...
(for example at least the waist, the lenght, breast etc.)
..am I beeing too difficult...? :>
P.S. ..and, actually, there are systems where you can straight see what size matches what in different countries. I could try to find those in my books, and maybe e-mail them to someone..?