CornerStone - ANSI 107 Class 3 Long Sleeve Snag-Resistant Reflective T-Shirt. CS409Stay safer on the jobsite in this high-visibility t-shirt that works as hard as you do., ANSI/ISEA 107 Class 3 certified, 3.7-ounce, 100% polyester, Wicks moisture, Resists snags, Rib knit crewneck and cuffs, 2-in. wide reflective taping on front, back and sleeves, Left chest pocket for pen and notes