Chill-Its 6700FR Fire Resistant Cooling Tie Bandana Headband, One Size Fits Most, Blue Modacrylic cotton blend fabric Fabric meets ASTM F1506 performance requirements (ATPV rating of 7.1 cal/cm2); classified CAT1 per NFPA 70E. Meets ASTM F2302 for flame resistance Soak in water 2-5 minutes to activate Remains hydrated for up to 4 hours Colors: Solid Blue, Hi-Vis Lime