I have had many people ask about the best shoes for Zumba. Many Zumba instructors and students like Bloc Dance Sneakers, but I have found that they don't have enough support. Nike Shok Electra is what I wear and like...I also put Super Feet insoles in them. Traditional aerobic and running shoes frequently have too much tread and are splayed laterally, which can trip you as you move quickly, turn, and move side to side like in a salsa travel step. I hear a rumor that Nike has come out with a "dance shoe", largely as a response to the huge demand Zumba has created, so ask at athletic shoe stores and check them out. If anyone has had good experiences with a certain shoe and can recommend them to others, please comment!