The Dickies FR5002 Flame Retardant Thermals Set comprises a long sleeved crew neck top and elasticated waist long johns. Meets the following standards: EN ISO 11612:2008 A1 B1 C1 protective against heat and flame, EN1149-5:2008 and EN1149-3:2004 antistatic standards. Fabric: 60% modacrylic, 38%cotton, 2% antistatic, 170gsm.