The Ultra Natural Tennis features an upper which is made of Synthetic Leather/Mesh. Profile is The LIGHTEST and most DURABLE K-Swiss tennis shoe. DURABILITY is achieved with an Aosta II rubber outsole and toe drag zone combined with a high-abrasion TecTuff toe wrap. TRACTION comes from a tennis specific, multi-surface wavebone tread pattern. STABILITY and COURT CONTROL are maimized by an anatomically correct 3 degree radius midsole/outsole with large surface area and an eternal heel counter. Available Colors: Lime Green/Black/Stingray, White/Classic Blue/Light Grey, White/Sport Green/Light Grey, White/Togo Brown/Light Grey, White/Light Grey.