"L" = Long, long sleeve, like : D&G-Shirt-B-L-001 ... 
"S" = Short, short sleeve, like : D&G-Shirt-B-S-001 ... 
"B" = Business, business shirt, like : D&G-Shirt-B-S-001...

size (INCH)	15.5	16	16.5	17	17.5	18	18.5
size (CM)	39	40	41	42	43	44	45