The socks themselves work because of the strap on them, I think that keeps the sock from being sucked into your shoe. I personally wore them a lot with my hightop convers and ankle boots. I don't own flats (because they're disgusting) so I couldn't tell you how well they work with them, but from the looks of it, I would figure just the same. They absolutely hold true to every claim they make. My feet weren't cold, even though it was 30 degrees out. They also didn't sweat, even though I wore them out all day. All in all this is an excellent product. I wish they would make all kinds of socks because I would buy them all and sleep in a bed of magic panda socks. I am definitely a fan, and if they're looking for a spokesperson of some sort I could do that too. I'm just here to help. So if you like no show socks, or the feeling of walking in the lap of luxury, then go out and buy yourself these socks, because they will change your life, or at least make your walk around Walmart more bearable. I'm kidding, nothing could do that, pretend I said Target.