Permanent cooling properties make the ever-popular CoolBlast 100 Short Sleeve Shirt even better than before. Plus, the superior new cooling fabric provides UPF 100, blocking 99.89% UVA and 99.93% UVB rays to shield your skin from the sun. The fabric outperforms others in wicking moisture and converting it to a cooling energy to keep your skin dry. Quick-drying and exceptionally breathable, the CoolBlast Shirt boasts a flattering feminine fit, athletic quarter zip placket and plenty of stretch for your freedom of motion. Mesh panels under the arms also provide airflow. Key features: UPF 100; blocks 99.89% UVA and 99.93% UVB. Rapid cooling action. Extreme breathability. Instantaneous moisture pulling. Quick drying. Machine wash. Hang dry for best results.