Nike Therma fabric helps manage your body’s natural heat to keep you warm—and performance high when temperatures are low. Dri-FIT technology wicks sweat for faster evaporation to keep you dry and comfortable. Features soft, insulating fibers and an adjustable hood for warm coverage. COLD-WEATHER COVERAGE. The Nike Therma Men's Training Pullover Hoodie features soft, insulating fibers and an adjustable hood for warm coverage. This product is made with at least 50% recycled polyester fibers.