FR MATERIALS:10 oz Cotton Canvas Duck FR Treated Outside,6.5 oz FR Cotton Twill Quilt Lined with 100g Modacrylic/Cotton FABRIC CONSTRUCTION: Light Water/Rain Repellent and Oil Resistant.Zipper Front jacket with String Hood and Kangaroo Pocket at Front.Rib-knit Cuffs and Waistband.Two inside Pockets with hook-and-loop closure. ENSURE SAFETY AT WORK: This garment meets or exceeds the standards for HRC 3, Arc Rating Atpv 38 cal/cm² and the Requirements of NFPA 2112 Standard on Flame Resistant Garments for Protection of Industrial Personnel Against Flash Fire, 2012 Edition. Also NFPA 70E, ASTM F1506, and CAT 3 Certified! MORE USE TIME: UP TO 100 WASHES. Our vests have the appropriate level of protective gear and stay enforced up to numerous washes. You can wear and wash it over and over again up to 100 times while the FR protection remains effective. (NFPA 2112, ASTM F1506, CAT 3) MULTI-USE: Made For Welders, Fitters, Ironworkers, Electricians, And Other Industrial Workers Even At Home. It can be used for any kind of industrial and construction work. Our workwear protects you every day and helps you do heavy work.