I tried going smaller since it has the water bottle holder on the side. The magnetic flap thing looks bulky/unsightly: cool idea, not as functional as I thought when closed. Kept opening when I didn't want it to. The stitching on the handle to bag connection and several seams were pulling already when empty. I needed to leave on a trip, so I spent an evening stitching & reinforcing them, but other reviews noted the poor stitching and they are not wrong. If you plan on not putting anything in the bag, fine. If you do, well, not super fab. I had to buy another purse a few months ago due to complete stitch failing, so it lasted less than one year. I liked all the compartments, but it doesn't hold up to daily use overall, which is a bummer.