FEATURES :* 43% Rayon/ 39% Modacrylic/14% Aramid/4% Spandex* Inherently Flame resistant* Power Grid Technology features a patented grid construction that breathes and wicks moistureSTANDARDS :* NFPA 70E PPE* ASTM F1506ARC RATING :* ATPV 11 cal/cm2 HRC/CAT 2