I found a pair of Gascan's on the street one drunken night and picked them up. The lenses are scratched up a good bit, but I like the fit. I was just curious if anyone could help me differentiating between the regular gascan, gascan s, and asian fit gascan. The left arm of the sunglasses only says gascan, and the tight arm says made in U.S.A. CE and has some white numbers on it 03-473 60 O 16. The O in 60 O 16 is the Oakley "O".