7 oz. Firewall FR fabric - 88% cotton / 12% High Tenacity Nylon blend. HRC: 2 (ATPV rating: 9.2 cal/cm²). Two-way breakaway front zipper with exterior storm flap closure. Adjustable cuffs . Tunnel collar with velcro closure . Two front upper pockets, two large back pockets. Two lower front patch pockets with side access vents. One tool pocket on rear right leg, one left sleeve pencil pocket . Elasticized back side waist. Fully stitched bi-swing back. CAN/CSA Z96 Class 1 / Level FR striping. RT80 featuring 3M Scotchlite Reflective Material - 8940industrial wash flame resistant trim (2" yellow/silver/yellow) with X on back. Meets the requirements of NFPA 70E-2009, NFPA 2112-2007,NFPA 1975-2009, NFPA 1977-2005, ASTM F1506-02a, CGSB 155.20-2000, CGSB 155.22 and OSHA 1910.269.