FR MATERIAL LIGHT WEIGHT：This flame-resistant 100% cotton NFPA2112 fire-retardant welding shirt is made from 6.5oz lightweight flame-resistant treated cotton twill fabric, offering water/rain repellency and oil/stain resistance.Specially designed FR buttons and FR sewing threads provide extra safety. The washing tag also features additional FR information regarding UL certification,ensuring compliance with safety standards. FASION AND COMFIT:This FR work shirt offers a perfect, comfortable fit with pre-wash and pre-shrink treatment, ensuring a wrinkle-free and comfortable wear. The classic checkered design comes in a variety of color options, balancing work functionality with a stylish look, making it perfect for both industrial work and everyday wear. ENSURE SAFETY AT WORK :This garments meets or exceeds the standards for HRC2,Arc Rating Atpv 8.2 Calories/cm2 and meets the requirements of NFPA2112 standard on flame resistant garments for protection of industrial personnel against flash fire,2012 edition.Also NFPA70E ASTM F1506 and CAT II Certified! MULTI-USE:Made for welders, fitters, ironworkers, electricians, 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. 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 works.(NFPA2112,ASTM F1506,CAT II) This easy-wearing, hard-working men's plaid shirt is made of 6.5oz 100% cotton, offering lightweight comfort for everyday work. Featuring a classic button-down design that meets flame-resistant standards. Our shirts are certified NFPA 2112 by UL and meet CAT II standards.