If you're looking for the ultimate in rugged durability and FR protection, this heavyweight brown duck overall is your winner. Double reinforced fabric throughout the leg and thigh ensures these pants will stand up to whatever you put them through. Wash Care : Home Wash. Fabric: Flame resistant, 13 oz. (440 g/m²) Duck. Blend: 100% Cotton. Pocket: Two large front bib pockets with pencil stall, Two set-in swing pockets, One watch pocket, Two large hip pockets, One double tool pocket. Features: Double fabric on leg & thigh. Leg zippers to knee. Elasticized shoulder straps with non-conductive adjustable hardware. Protection: Arc Rating ATPV 16 calories/cm².