The NKE Men's FR Hi-Vis Button-Down Shirt delivers dependable flame-resistant performance, mobility, and everyday utility in a durable work shirt built for demanding jobsite wear. Built with Inherently modacrylic blend ripstop fabric, this piece is designed to hold up through long shifts while maintaining comfort and range of motion. Key details include 5oz BLEND RIPSTOP FABRIC, Inherently aramid sewing thread for strength and flame resistance, and 360° segmented reflective tape for maximum visibility. It is compliant with NFPA 70E, UL certified to NFPA 2112, and ANSI/ISEA 107 Class 3 compliant.