Meets ANSI/ISEA 107-2010 Class 2 Standards. Comfort-Stretch Reflective Taping providing the wearer with more "give" when worn. Split taping along side seams for even more flexibility. Quality fabrics and built to last! Made of Breathable 3.83oz., 100 percent polyester moisture wicking Birdseye fabric Moisture-wicking fabric promotes day-long comfort. Resists fading and shrinkage. Chest pocket with no taping allows for logo placement. Built tough with double-stitched shoulder seams. Complies with ANSI, ISEA.