Rasco FR Men’s Hardworking Denim Jeans is made of FR denim fabric, certified flame-retardant. It has a FR buttons, a relaxed boot cut fit, two front pockets, and a coin pocket on right side. The back pockets are reinforced and seams are triple stitched for enhanced durability. Rasco’s Hardworking Jeans is indeed hardworking meeting all the requirements for flame resistant garments ensuring safety in the field, especially for those working closely with electrically charged machinery and other sources of thermal hazards. Meets standard for NFPA 70E and ASTM F1506-10A certification.