Craft Active Extreme Windstopper Running T-Shirt - SS16 CoolMax Extreme and Thermolite Fibers - Provide excellent moisture transport and body temperature management. Windstopper Panels - Positioned in exposed areas and more individually, providing wind protection and freedom of movement simultaneously. Seamless Torso - Providing an ergonomic fit, which hugs your body in specific zones. Thin, Lighweight and Elasticated - Ensuring full range of motion, while providing full upper protection. Flat Lock Seams - Reduces the chance of chafing caused by irritation.