Can't see these peeking out of your flats which is awesome. I find my feet get a little sweaty in them so next time I'll get the ones that specifically say moisture wicking but these are really great in how you can't see them and the back doesn't fall down.

Update: I wore my 4th pair and realized the silicone backing was missing on one of the socks. I contacted Amazon and they credited me back the amount of one pair.