Flame-resistant outer shell is made of 60% modacrylic cotton and 40% cotton twill blend.
Flame-resistant lining of 60% modacrylic cotton and 40% cotton fleece blend.
This flame-resistant mouthpiece meets requirements of performance specification ASTM F1506; classified CAT2 according to NFPA 70E; Arc-rated; ATPV rating of 20 cal/cm2.