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 Removable tag for comfort and relabeling UPF rating of 50 Self-fabric trim at neckline Self-fabric binding at armholes Due to the nature of 100% polyester performance fabrics, special care must be taken throughout the printing process.