YONEX T-shirt Size: S Retail Price: 5390 yen ❁ Static Electricity Guard: Suppresses static discharge. ❁ Carbon-containing Sewing Thread: This product effectively uses conductive fibers (carbon-containing thread) in the sewing thread. It suppresses the unpleasant static shocks when putting on or taking off the garment. New with tags, but there is a snag in the thread next to the logo on the back. (It's not very noticeable) Thank you. ❁