The Ergodyne Chill-Its 6717FR Evaporative Hard Hat Neck Shade with Cooling Pad straps into hard hats to deliver 4 hours of cooling relief while also meeting ASTM F1506 for arc flash protection and flame resistance. The low-profile and lightweight hard hat cooling pad features cooling acrylic polymers for instant cooling without bulk or slime, making it comfortable to wear under hard hats. The wide panel shade extends down for full back-of-neck FR coverage as well as protection from sun damage. This hard hat neck shade fits most hard hats and safety helmets, easily attaching to the suspension with two hook and loop straps. Heat-related illness continuously ranks among the top causes of worksite accidents and fatalities. Evaporative cooling technologies such as polymer crystals are a simple, effective, and comfortable solution for heat stress prevention. Similar to how sweat cools the body, evaporative technologies use an external water source to draw heat away helping to regulate body temperature while providing cool relief. When activated, this hard hat neck shade is comfortable and refreshing for even the hottest days of the year. Soak it in water for 2-5 minutes to re-activate. The polymer crystals will retain water for up to 4 hours of cooling relief.