Made with modacrylic fibers and polymer technology, 6717FR Hard Hat Pads with Neck Shade keep you cool while working in the heat. Flame-resistant material protects your skin from burns or fire-related injuries. Fabric meets ASTM F1506 and F2302 requirements for flame-resistant and protective clothing. These pads are perfect for workers dealing with construction, mines, oil and gas, electricity and more. Evaporative cooling technology activates when submerged in water. Once fully saturated, wear pads up to 4 hours. Reactivate the cooling process by soaking them in water again. Neck shade extends to bottom of your neck and protects skin from harmful UV rays and sun damage. Handwash and air-dry to preserve material longevity.