Only Nike's engineers could develop a superior moisture-wicking technology like Dri-FIT Body Mapping. Constructed from Dri-FIT fabric, this sharp-looking sport shirt surrounds you with seamless, strategically placed ventilation zones where your body generates heat the most-to keep you cool, dry and comfortable. The ultimate high performer, it's particularly exceptional in hot, humid conditions. The design features a solid knit collar and open sleeves. The contrast Swoosh design trademark is embroidered on the left sleeve. Made of 5.6-ounce, 100% polyester. Pearlized buttons are selected to complement the shirt color.