Finally I found it!
I have been a frequent traveler for many years and never found the right carry-on bag/personal item. Women's bags rarely have the sleeve to go over roller bags, the straps were always either too long or too short, bucket bags just got too unruly and ones that were divided in the middle weren't flexible enough to handle both my 15" laptop and everything else I would want for a 15-hour flight. Now that I'm headed to grad school, I needed something that could travel, and work for me as a student. I got the OG, and it's perfect. It's organized, but not to the point where it is inflexible. It fits my 15" MacBook (though not in the built-in computer sleeve) along with my iPad, books, notebooks, and everything else I need for a day of classes and teaching. I wish I had gotten it years ago!!