It is four cooling jacket of the sleeve. As for two of four, the air cooling fan is installed. I want a hot going out at the summer time to try to the businessman who should make to the long sleeve to avoid harmful ultraviolet rays or should put on the uniform by all means.
４本袖のクールBIZです、うち２本の袖には空冷ファンがついています。夏場の暑い時の外出に有害な紫外線を避けるための長袖を着なければならないとき、また制服やスーツを着なければならないビジネスマンにぜひお勧めです・