LOVE LOVE LOVE these flats! So comfy! No heel slippage at all-because of the elastic band across ankle. For those concerned, toe cleavage does show. But for me the comfort is more important than the toe cleavage. I usually wear a size 9.5-10. I got size 10 due to them being flats. I'm glad I did, my toes have plenty of room without the shoe being sloppy or too big-looking. My R great toe has a small bunion and that does not rub at all because the toe joint is out of the shoe's upper, if that makes any sense lol. I added stick-on foam arch supports because there isn't any in the shoe. I will buy these again, in a different color, if I can find for a good price.