... and safe to human body..... Details of C/N functional Fabric: C/N fire proof fabric for work wear ... poisonous, comfortable to wear and safe to human body.C/N fire proof fabric for workwear has excellent abrasion ... arc, flash fire,molten ferrous metal welding expssares.CompositionC/N FR & Anti-static Fabric, 88% cotton and 12% high ... EN11611),EN531(EN11612),EN533,NFPA 2112,ASTM D6413 C/N FR and AS Fabric