4 oz./yd (US), 6.7 oz./L yd (CA), 100% polyester interlock jersey with Pro-Lock technology. Pro-Lock collections cationic disperse dyed polyester locks in colorfastness to create a bleed-resistant print surface that produces vibrant, crisp graphics.. Shaped, standard fit. Moisture-management. Snag resistant. Self-fabric collar. Rolled forward shoulder for improved fit and comfort. UPF rating of 50. Tear away label for comfort and relabeling.