Harriton Men's Advantage IL Workshirt ul)4.5 oz./yd2/155 gsm (US), 7.5 oz./L yd (CA), 55% cotton, 45% polyester twill. Tested to 50 industrial washes in accordance with AATTC (American Association of Textile Chemists & Colorists) industry standards. Wrinkle resistant fabric properties for a crisp, polished look. Stain release fabric properties allows stains to detach during washing. Structured collar stand with integrated collar stays. Button-down collar. Double chest pockets with button closures and pen slot. Left-chest zippered pocket at placket. Carbon neutral style in partnership with Green Story third party verified carbon offset program. Responsible Supplier: this product was made in a facility that is FLA certified.