8.5-ounce, FR Quick Duck®: 88% cotton/12% nylon with Rain Defender® durable water repellent 20% lighter but just as warm as heavier outerwear Insulated with 150g 3M™ Thinsulate™ Platinum Insulation FR Three-piece hood design for better fit Adjustable Nomex® FR drawcord with secure nylon drawcord lock Specifically designed to snap onto FR Quick Duck® outerwear Meets the performance requirements of NFPA 70E