The Flame-Resistant Long Sleeve Tee Shirt by Dickies. This lightweight, yet safe and sturdy, 6 ounce UltraSoft Interlock knit shirt is a worker's original, with a spacious fit for all kinds of work activity. It has an ARC rating of 10.9, is (Hazard Risk Category) Level 2, and is NFPA 70E compliant. Featuring a single chest pocket, and reinforced taped neck and shoulder seams for longer wear, this reliable shirt will have you covered in tough working situations. Dickies, Quality Workwear since 1922.