The K-Swiss Ultrascendor tennis shoe features a leather and synthetic leather upper with DuraWrap™ XDE high-abrasion toe guard that provides durability and breathability. Stayed Tied Laces system. Y-Beam midfoot support structure anchors the arch area with a TPU injection component. K-EVA special formula EVA provides maximized cushioning and enhances the durability of the midsole. Ortholite Moisture Management insole with anti-microbial properties. Shock Spring in the heel and forefoot offers added cushioning. Non-marking, Aosta 7.0 rubber outsole with a tennis specific, multi-surface, wavebone tread pattern adds traction. DragGuard in the toe and heel areas gives extra durability. Light weight is achieved with a skeletalized, two-piece outsole with exposed EVA. Wt. 11.7 oz.