Finally! I have purchased any number of backpack purses (after my daughter informed me that "no one uses a purse anymore") and have never found one that worked well for me. But I digress.I have found other leather backpack purses: (1) to be too heavy, (2) to have too few outside pockets and (3) to have outside pockets that are hard to get into even when they are present. I have also purchased any number of nylon backpack purses and found them, in general, to be too small or to look too casual for my intended use.Therefore, I am quite happy (almost delirious) to report that this black leather version (for me) seems to be the ideal solution. The leather is soft and medium weight--which gives it a professional look (vs. nylon for example). There are 3 large external pockets which meet my needs for quick access to: (1) a phone, (2) some cash (yes, I am that old fashioned) and (3) other fast-access essentials (Purell, for example). There are 2 side pockets (the kind you would think of to use for a water bottle. That said, the ones on this bag are pretty small and I don't think ANY water bottle or umbrella would fit. Now that I think of it, I will use one of them for a small bottle of Purell.The interior is roomy and has several internal pockets including one with a zipper. The lining is black fabric (in this case) which looks nice but makes things a little harder to find inside.While the bag is not highly structured, I found it to keep its' shape reasonably well when filled up. I know some have said it is too slouchy--that is probably a matter of taste. This has more structure than almost any nylon bag, for example.The shoulder straps are a combo of leather at the top and soft nylon strap. Very adjustable--work well for me. There is also a strap to turn it into a shoulder bag---it looks good but I do not intend to use that.The only addition I would make is a tether for keys and/or wallet. In this case, I solved for this by sewing a standard keychain "ring" onto the inside. I just clip my carabiner key ring onto the ring and also put a tether or two (I have leftover tethers from other bags).Anyway, this bag seems to offer a professional look (in the black leather) as well as good utility as a true backpack purse. The size is optimal for me--not too large and not too small (and sturdy without being heavy).