I ordered these shoes a half size large after reading the reviews and that did the trick. I needed a wide toe box and these delivered. As most people say, it takes a few days to get used to wearing minimal shoes, but the patience is worth it.
These shoes are nice looking and comfortable out of the box. I wear them with socks, but I don't think you need to. I can walk on gravel or dirt roads fine and they protect against the sharp edges. I feel the rocks, but that is what minimal shoes are for. I have a bit of a problem with hard surfaces when I walk fast, but at a strolling pace or just out and about they are fine.
UPDATE: These shoes look so small. I mean they are small and lightweight, but the things they will do for you are incredible. It took me about a month to get fully accustomed to the way my feet and legs needed to be. Then we went on a trip to a national park and did some hiking. In two days we hiked about 10 miles over rough and rocky terrain. I took a chance on just using these shoes because we were flying and I didn't want to take hiking boots. It is hard to fit hiking boots in a small carry-on. Well the first day of hiking went okay. My legs were sore, but my feet didn't hurt, but I still wasn't sure. Then the second day we hiked 5 mile over boulders and dry and wet streams. I haven't been that sure-footed since I was a kid(I am 56). Then at the end of the hike my feet actually felt good. I haven't been without foot pain for 20 years. So when we got home I decided to give them another test. I wore them to my volunteer job working in a soup kitchen 7 hours on concrete floors on my feet the whole time. WOW. I have worked there for 2 years and this is the first day I haven't had sore feet. Who would have thought I needed less shoe for more comfort. I certainly wouldn't have. Podiatrists need to get this message.