I take Zumba classes 2-3x a week.  I was having some discomfort in my feet and knees because I was wearing running shoes.  Well, no more pain!  These shoes are great, lightweight, and the wide base at the front and back of the shoe feels like a nice solid foundation.  I can't stress to you that you absolutely need to order them at least 1 size up, preferably 1 1/2 sizes up.  I wear an 8, but I ordered a 9 1/2 based on the other reviews and they fit, with about a 1/4 of an inch space at the toe.  Any size lower would have been too small.