Built specifically on a dancer"s high arch last for true fit, comfort and elegance. Perfect for Zumba! The Boost DRT incorporates super lightweight materials and an extensive range of custom designed features to meet the performance needs of the serious dancer. Variable lacing system with custom fit provides support & optimum arch fit. Fully built in arch support & elevation for maximum comfort & feel. Lightweight P.U. midsole provides maximum cushioning combined with a four part high-density P.U. outsole for enhanced flexibility and the correct amount of slide. High density P.U. pivot point allows 360 degree movement and enhanced freedom. D.R.T cushioned heel for maximum shock absorption & comfort. Construction: Combination synthetic mesh and suede upper, PU outsole, air cushion heel. Split sole. This style runs smaller than marked. The manufacturer recommends going a size larger than your normal size (if you are trying to accommodate a wide width, please order a full size larger than your normal size).