SCHAMPA’s Long Sleeve CoolSkin Shirts make a great base layer or casual walk around shirt. CoolSkin fabric is an extreme wicking product, this means that it pulls moisture away from the body, therefore keeping you dry. In the summer sweat will be pulled away and you will remain cool and comfortable without worrying about chaffing. In the winter unwanted moisture will be sucked away from your body thus keeping you warmer and drier. This truly is a year round shirt, and we all know, Sweat is no bueno!