Ergodyne 6715 Chill-Its Evaporative Cooling Hard Hat Pad
 
 
The Ergodyne 6715 Chill-Its Evaporative Cooling Hard Hat Pad is exactly what it sounds like.  Put this under your hard hat and it will keep your crown cool.
 
 
 
 
 
Features: 
 
 

 
 
Lightweight, cooling acrylic polymers
 
 
Hook & loop closures
 
 
Conveniently attaches to hard hat suspension headband    
 
 
Soak in water 2-5 minutes to activate
 
 
Remains hydrated for up to 4 hours
 
 
Solid blue