Hi gals! I am completely clueless about B-Bags and came across this bag on Craigslist and after a few days he emailed me to let me know none of the other people are biting and asked for 650. Anyways he sent all kinds of pics and I was wondering if you knew if it was authentic and which bag is it? That's a lot of money to me but even then it's certainly odd that he would take 650 for it.. Thanks!