First of, if you haven't gotten the hint these flats are hella cute. I've only worn them once, with out socks. Pretty comfortable considering they are flats. Walked around for a couple hours, they feel like they're going to break in pretty nice. I'm a 6.5 in womens and purchased a size 7. They fit just fine. I feel like ill get some insoles once they loosen up. Would definitely recommend.