I quickly became addicted to these slippers.  I wear an 8 1/2.  I bought the 7.5/8 and they fit perfectly.  my toes and my heel fall right within the edges.  The band across the top loosened up a bit, but they never slip off.  I have callouses on the bottom and sides of my feet and the manicurist said it was from not wearing shoes.  I'm in socks 80% of the time.  She removed callouses and after wearing these slips, they have not come back!  You'll see your toe impression after a while of wearing and think they're wearing down, but they're not.  I've washed them, threw them in the dryer with my clothes for about 5-10 minutes and the air dried.  Came out just like new.  Best slippers I've ever had at a price I would pay again as a gift.