I don't dance, but have severe problems with my feet and decided ballet slippers might be the answer to padding around in the house and even my mossy backyard. Since I hadn't order ballet slippers since my daughter was in dance 2 decades ago, I was very uncertain as to what size to buy. The price was so good, I decided to get a size 6 and a size 6.5. I wear a size 6.5 shoe with most styles. I am happy with both pairs! I imagine if I were a ballet dancer, the smaller size would be the absolute perfect fit. Having said that, I'd say order a half size smaller than your normal shoe size. I DO love these. They are perfect for my needs!