I've been loyal to asics running shoes for a decade. But everyone and their brother has been talking about the barefoot running craze. The reviews for these were overwhelmingly positive and I can see why. I put these on and headed to a rubber track. There was ZERO break-in period with these shoes. That's what I can't get over. I didn't wear socks with them and had NO issues with rubbing/friction. And here's the kicker: I got home and didn't want to take them off; they're just comfortable. I find myself wearing them everywhere, most likely because I would prefer to be barefoot 24/7. Sizing: true. I'm a 5.5-6 and I got a 6 to be safe. I wore a 6.5 in asics. The 6 fit me perfectly and I could probably have gone down to a 5.5. Width: They fit my skinny feet, but I'm pretty sure they stretch well to accommodate more width. Note on color: I got lavender and they're adorable but not quite as bright as they look in the image.  Still a nice color, though.