The best of two hard-working worlds, this lightweight FR Flex Knit combines the crisp, professional look of an office work shirt and the comfort of your favorite T-shirt. Lightweight stretch fabric flexes with your body for added comfort and range of movement. Button-down collar keeps you looking crisp and sharp all day. Easy-to-spot CAT 2/2112 label on the left sleeve leave no question that you're protected on the job site.