Rated UPF50 to help combat harmful UV rays this tee also performs with Dry Zone moisture-wicking technology to keep you cool dry and comfortable. 3.8-ounce 100% polyester UPF rating of 50 Self-fabric binding at scoop neckline and armholesTear-away labelPlease note: This product is transitioning from white to black tear-away labels. Your order may contain a combination of both colored labels.