Comfortable training shorts that ensure adequate air flow and do not restrict movement. Elastic waistband with a string for greater comfort and better fit.Very Cool - Using cooling Xylitol material, Yonex's VeryCool garments absorb heat and sweat, providing a significant cooling effect during exercise. Regardless of the ambient temperature, VeryCool lowers body temperature by 3°C for cooler play.UV Reduction - Yonex clothing captures infrared radiation and approximately 92%* of ultraviolet radiation, minimizing heat build-up during play (*tested by Boken Quality Evaluation Institute).Antistatic- Carbon-impregnated conductive fibers sewn into clothing remove static electricity build-upStretch - Innovative stretchy material allows for free movement that supports your active play.Sweat Absorbent and Quick Dry- Light fabric that wicks away moisture and keeps you dry.