4.7-ounce 50% Viscose / 33% Meta-Aramid / 10% Nylon / 5% Para-aramid / 2% Antistat FR twill - Breathable honeycomb weave fabric - Meets the performance requirements of NFPA 70E UL classified to NFPA 2112 - Built with Force technology - FastDry technology - Wrinkle resistant anti-static colorfast fabric - Two-way front zipper with storm flap and high temperature-resistant FR zipper tape - Two secure chest pockets with flaps and hook & loop closure Comfort flex waistband for increased comfort - Back yoke with pleats for ease of movement - Multiple utility pockets for added storage - Adjustable sleeve cuff with snap closure - Ankle-to-knee leg opening with snap closure fits over boots Lower-front ledge pockets with side-entry pass-through and snap closures - Carhartt FR and NFPA 2112/CAT 2 labels sewn on left-chest pocket