Bloch Dance Girl's Boost Mesh DRT Split Sole Dance Sneaker 100% Mesh and suede Imported Rubber sole Split, non-marking outsole sneaker made on a high arch last with lightweight high performance materials Built in arch support and elevation to accentuate the arch Variable lacing system for support and optimum fit in the arch; Compression molded EVA sock liner Dri-Lex lining that is non-wrinkling, breathable and odor/mildew resistant Suede heel grip with D.R.T cushioned heel for shock absorption and comfort Lightweight manmade midsole with air cushion of 4PSI for shock absorption Four part high density man made outsole with spin spot for 360 degree turns Sizing: Girls start with 1/2 size up from street shoe; 1 size up for wide feet. Boys start with 2 full sizes up from street shoe