100% FR Cotton Interlock Knit 220 gsm; 6.5 oz.Aramid high tenacity FR threadFR ribbed collar and cuffsExtended tailHRC2Arc Rating: ATPV 11.8 cal/cm2NFPA 70E-2004NFPA 2112-2012ASTMF 1506-2010aVendor Style Number: W1207020