4 oz./yd (US), 6.7 oz./L yd (CA), 100% polyester interlock jersey with Pro-Lock technology. Made with cationic disperse dye for a premium fade-resistant printing surface. Standard fit. Moisture-management. Snag resistant. Self-fabric collar. Three-button placket with dyed-to-match buttons. Rolled forward shoulder for improved fit and comfort. UPF rating of 50. Tear away label for comfort and relabeling.