- Brand: YONEX - Item No.: 68110 - Color, Size: Black, Size S - Retail Price: 9900 yen (tax included) - Features: Heat Capsule, Anti-static Heat Capsule... Warms up with infrared rays. This system converts sunlight and infrared rays emitted by the human body into heat, trapping the heat within the fibers. When continuously exposed to infrared rays for a certain period, the surface temperature shows a difference of approximately 3-7°C compared to conventional cold-weather materials. Anti-static... Anti-static thread is used in the stitching. This suppresses unpleasant static electricity during wear and removal. Thank you for viewing. This is a pair of YONEX jogger pants. My daughter never had a chance to wear them, and she has outgrown them. If anyone who fits the size is interested, please do!