adidas - Lyte Speed GCS W (Running White/Black/Running White) - Women's: Designed for those who use quick directional changes, the Lyte Speed GCS adapts to the court for ultimate motion control. # Ground Control System adapts to the surface for motion control and ground cushioning. Mesh underlay for comfort and breathability. Synthetic material with fashionable surface structure. Textile lining. Compression molded EVA midsole offers lightweight cushioning. Non-marking rubber outsole.