Ergodyne Chill-Its 6486 Fire Resistant Headband, Multifunctional Headwear, Moisture-Wicking, Navy Meets requirements of Performance Specification ASTM F1506; classified CAT 1 according to NFPA 70E Anti-stink treatment helps wearers remain unscented Multi-climate usage Stretchable, comfortable and seam-free Ergodyne Chill-Its 6486 FR Multi-band: Supreme FR protection and performance with a multitude of uses and ways to wear.