100% Cotton Button closure Used once, like new condition Functional FR MATRIALS：Water & Oil Repellent Finish.7.5OZ Mid-weight Cotton Twill Flame Resistant Treated,FR Buttons,FR Sewing Threads!Clear FR Tag on front.UL NFPA2112 Classifeid,More FR info On Wash Tag About UL Certification.We Attached A Small Sample Inside Package For Cunstomers Simple FR Try FASION AND COMFIT:This FR Work Pant has 7 Pockets and Elstic waist band, Provides A Perfect And Comfortable Relaxed Fit(Boot Cut). Double front fabric on knee.Double needle stitching on outseam. Left and right enlarge cargo pockets at the thighs with flaps to keep items secure.Two back cargo pockets help yop holding more stuff.We Did Prewash/ Preshrunk And Wrinkle-Free.Machine Wash No Shrink! ENSURE SAFETY AT WORK :This garments meets or exceeds the standards for HRC2,Arc Rating Atpv 9.8 Calories/cm2 and the requirements of NFPA2112 Standard on Flame Resisant Garments for Protection of industrial Personnel Against Flash Fire,2012 Edition.Also NFPA70E ASTM F1506 AND CAT II Cerfied! MULTI-USE:Made For Welders, Fitters, Ironworkers, Electricians, And Other Industrial Workers Even At Home. It Can Be Used For Any Kind Of Industrial And Construction works.More Durable Fabrics Pockets In Just The Right Places With So Many Features That Help You Get The Job Done. Our Workwear Pretect You Everyday And Help You Doing Heavy Works.