The work shirts are made of cotton knitted FR treated fabric, FR buttons, FR sewing thread, fashion and comfort coexist. The FR Work Shirt offers the perfect comfortable fit while being soft and stylish. We have pre-washed/pre-shrunk and anti-wrinkle treatment to ensure your safety and comfort.SAFE FOR YOUR WORK: This garment meets or exceeds the requirements of HRC2 Standards, Arc Rating Atpv 8 Calories/cm2 and NFPA2112 Standard for Fire Resistant Clothing for Industrial Personnel. Also NFPA70E ASTM F1509 and CAT II certified!MULTI-PURPOSE: Built for welders, fitters, ironworkers, electricians and other industrial workers, also suitable for everyday use at home. It can be used in any kind of industrial and architectural projects. Our workwear protects you and helps you get the job done every day.