【Quality】NOUTEX FR Shirt series uses a flame retardant sewing thread using aramid, inherently flame retardant materials to provide protection on the job. Made of 5.5oz 100% cotton knit. Lightweight and comfortable to wear, they are the perfect partner for work 【Flame Retardant Characteristics】This frc shirts meets or exceeds HRC2, Arc Rating Atpv 8 Calories/cm2 standards, and NFPA2112 Standard for flame retardant garments, which is used to protect industrial personnel from flash fires. It also passed NFPA70E ASTM F1506 and CAT2 certification！ 【Humanized Design】Henry collar can be adjusted at any time according to the temperature. The flame retardant shirt is made of 5.5oz fabric with rib knit cuffs. Front chest pocket with Velcro closure prevents items from slipping out when placing bent over. Sew the side and shoulder seams with floral thread to add fashion 【Comfortable Size】The NOUTEX CAT2 fr shirts features high density seams and a heat transfer labeled collar for a truly comfortable experience. The fr welding shirts for men is pre-washed/pre-shrunk to make them less likely to wrinkle. Flame retardant can be washed up to 100 times 【Multipurpose】The fr work shirts is suitable for welders, fitters, ironworkers, electricians, oil workers and other industrial workers, even at home. The fr clothing for men can be used for any type of industrial and construction work. Our workwear protects you every day and helps you do your heavy work 5.5 OZ Flame Resistant Crew Neck Shirt The 100% FR cotton material is soft, lightweight and breathable while still offering outstanding protection against fire, flame and arc flash. FR properties are good up to a 100 wash max. Extended inseam construction improves range of motion so cuffs don't ride up and shirt stays tucked in. Lightweight, breathable, moisture-wicking plaited knit with soft inner. Rib Knit collar and cuffs, enhanced fabric durability and stretch provide ease of movement and longer-lasting wear.