5.5 OZ., 50/50 COTTON/ POLY WITH SHOULDER-TO-SHOULDER TAPING, COVERSEAMED NECK AND DOUBLE-NEEDLE SLEEVES AND HEM. MADE WITH UP TO 5 PERCENT RECYCLED POLYESTER FROM PLASTIC BOTTLES. SAFETY ORANGE AND SAFETY GREEN ARE COMPLIANT WITH ANSI/ ISEA 107 HIGH VISIBILITY STANDARDS FOR BACKGROUND COLOR.