The Nike Shox Electro training shoe is made for fitness dance professionals looking for stability, fit and comfort during their fitness dance activities. Low-profile synthetic leather and mesh upper provides support, breathability and durability in key dance wear areas. Five-column Shox™ unit in the heel adds responsive cushioning. Phylon™ midsole, internal flex grooves. Die-cut Ortho-Lite heel cradle sockliner. Non-marking, spinnable rubber outsole with medial pivot point for turning on gym/studio surfaces. Wt. 10.6 oz.
I have personally tried a few different brands of shoes and these are definately the best. They have a sole made for the gym floor. They have no tread and a dance pivot point. You can purchase these at rebel sports. They have black in stock but you can order the different colors if you want to. Marti purchased hers at the Nike outlet in Park City so if any of you are heading there or to Vegas you can pick some up there.
If you don't want to purchase this kind of shoes then make sure you wear a cross trainer. If you wear a running shoe then your chances of sticking to the floor and injurying yourself is much greater because of the tread on the bottom of the shoe.