These are long sleeve light gray 100% performance polyester shirts. The shirts have the XtremeFinz diamond logo with a Yellowfin tuna on the front, our XF logo on the back neck area and an American flag on the left sleeve. These shirts offer superior sun protection and performance qualities featuring up to UPF +50 protection. The fabric is powered by PURE-tech™ moisture wicking technology and an anitmicobial treatment that keeps the shirt fresh. You will definitely like the way these shirts feel. The shirts are not tight and are very comfortable to wear.