hey i'm thinking about buying a school bag for my sister as a graduation present. i wanted to buy her the single clasp prada messenger. i found this on bluefly, but the size of this bag (12 x 9) is smaller than the one (14 x 11) that i was looking at in the actual store. do any of you prada experts know if prada make a smaller version of their single slip nylon messenger? i guess i'm just wary of bluefly. http://www.bluefly.com/pages/products/detail.jsp?PRODUCT%3C%3Eprd_id=2053950973&FOLDER%3C%3Efolder_id=1269585&N=1269585&Ns=Popularity%7c0%7c%7cProduct%2bCode%7c1&Nu=Product+ID any help will be much appreciated. thank you!