The NKE Men's FR Lightweight Flex 1/4-Zip Sweatshirt delivers dependable flame-resistant performance, mobility, and everyday utility in a durable sweatshirt built for demanding jobsite wear. Built with 6oz, 93% Cotton 7% Spandex, this piece is designed to hold up through long shifts while maintaining comfort and range of motion. Key details include 6oz FR knit - lightweight, breathable, and stretchable, Inherently aramid sewing thread for strength and durability, and 1/4 FR zipper for ventilation and easy on/off. It is UL certified to NFPA 2112, compliant with NFPA 70E, and arc rating of 8 cal/cm².