55% Modacrylic 43% Cotton 2% Anti-Static - 250 gsm. HRC 2 - 10 cal inherent protection at a light 250 gsm weight. Meets and exceeds all recent NENS, ISO and NFPA Design Guidelines. All reflective tape, buttons, threads, mesh are FR rated. Gusset sleeve closure for extra protection with FR rated buttons. Concealed FR centre placket for extra protection. Two chest pockets with FR button closures. Two way radio and gas loops on the shoulder yoke. Label that clearly shows FR rating of garment so workers can be quickly identified as having the right level of protection.