I bought these so I could Zumba in my living room.  They are very comfortable.  I normally wear a 7 so I bought the 8 and they are a good fit. I just wouldn't try to wear a thick sock in them. They slide well and have good support. I actually like wearing them around the house too. If they came in half sizes I would give 5 stars.  The 9 was way too big but an 8 1/2 would have been perfect for me.