fr matrials7oz cotton printed knit fr treatedfr buttonsfr sewing threadsclear fr tag on arms and bottom frontmore fr info on neck tag about ul certificationwe attached a small sample inside package for cunstomers simple fr try fasion and comfitpolo stylethis fr work shirt provides a perfect and comfortable fit also soft and fashionablewe did prewash preshrunk and wrinklefreethe size is bigu0026tallso dont buy size up ensure safety at work this garments meets or exceeds the standards for hrc2arc rating atpv 116 caloriescm2 and the requirements of nfpa standard on flame resisant garments for protection of industrial personal against flash fire editionalso nfpa70e astm f and cat ii certified more use time up to 100 washes our shirts has the appropriate level of protective gear and stays enforced up to numerous washes you can wear and wash it over and over again for up to 100 times before fr still worksnfpa2112astm f1506cat ii multiusemade for welders fitters ironworkers electricians and other industrial workers even at home it can be used for any kind of industrial and construction works our workwear pretect you everyday and help you doing heavy works The above is the product introduction. We look forward to your attention