Great looking slippers, but they are supposed to fit mens 8-12, which means my womens size 8 1/2feet would be roughly a mens' 6 1/2...well,these fit me exactly, and since I bought them for a friend with size 9 feet, I think they'll be a little tight on her. I really wonder how these fit men. Maybe they stretch like crazy?  Anyway, they're adorable killer bunny slippers and she'll be pleased. The sales blurb says the mouths open and shut as you walk, but they only bounce around a bit. It's not really an open/shut motion,just bouncing, so don't think they really open and close. Other than that, they are hilarious and seem to be fairly well-made, though time will tell on how well they last with heavy wear. For a Monty Python fan, these are a wonderful gift. I might have to get myself a pair one day.