Stay 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. UPF rating of 30+. Resists snags. Rib knit crewneck and cuffs. 2-in. wide reflective taping on front, back and sleeves. Left chest pocket for pen and notes CS409