i've always liked chanel shoes but was never on the edge to get a pair. i'm into flats and was wondering if the the 2-tone 50th anniversary flats really do exisit? i saw them on eBay (listing is over now) and liked them since it's BEIGE (my fav) but wasn't sure. do i have to worry about the authenticity of some chanel shoes? ugh, i'm such a noob when it comes to chanel shoes. educate this sister! THANKS!