Don't believe the sizing information shown in ad.  They are 1/2 to a full size SMALLER (and are for narrow feet only) than what it says you are getting.  If these fit properly I'd give them a 5 star rating.  But I wore them for two hours while on vacation and couldn't walk for days afterwards because of the blisters they caused on my toes for being too small (and I did order my correct size).