Bloch - Boost DRT Mesh Sneaker Black - Footwear: Built specifically on a dancer's high arch last for true fit, comfort and elegance. 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.