This is a really well-made bag and I had high hopes that it would work for me, but unfortunately it did not.  It is a very good quality bag but not made for someone who carries a lot of stuff in their purse/bag, or for someone who carries a wallet that isn't super small.  I bought it after having my baby so that I could have my hands free when out and about, but after transferring all of my purse contents to see how they would fit into the Travelon bag, the bag became very bulky and awkward to have on me.  I had read the reviews before that said the compartments in the bag were too small, but decided that I should see it for myself to be sure.  Well, the reviews were right.  The bag expands on the bottom but doesn't expand the top of the compartments so it makes for a very awkward set-up.  I struggled to get stuff out, like my wallet, for example.  I also couldn't fit my sunglasses anywhere and have the flap close nice and flat.  I would definitely buy this bag if I wasn't going to carry a lot with me, but if you're traveling and on a day trip, for example, you may want to carry a little more, and this just isn't a bag for that.  I definitely couldn't fit a water bottle into it, along with my wallet, sunglasses, etc.  I'm not a person who carries a huge purse around either, I hate big purses.
Overall, a very well-made bag, but it just didn't work for me.  I ended up returning it to eBags with absolutely no problem, and found another one that I am very happy with.