7.5 oz Cotton Twill FR Treated, FR Buttons, FR Sewing Threads!Clear FR Tag on Phone Pocket front.More FR info On Neck Tag About UL Certification. We attached a small sample inside the package for cunstomers Simple FR Try This FR Work Pant has 9 Pockets And Elastic waist band, Provides A Perfect And Comfortable Relaxed Fit. Also Soft And fashionable. We Did Prewash/ Preshrunk And Wrinkle-Free. Machine wash, no shrinking! Double needle stitching on outseam. Left and right cargo pockets at the thighs with flaps to keep items secure. ENSURE SAFETY AT WORK: This garment meets or exceeds the standards for HRC 2, Arc Rating ATPV 9.8 cal/cm², and the requirements of NFPA 2112 standard on flame-resistant garments for protection of industrial personnel against flash fire, 2012 Edition.