MiraCool products increase alertness and productivity by keeping workers cool. Just soak MiraCool in cold water for 10-20 minutes, and it stays hydrated for several days. Works without freezing or ice and is reusable thousands of times. Choose the style that meets your needs: bandana, tie hat ("Doo-Rag"), or headband. (Assorted colors available - call for more information.) Hard hat pad (available in navy only) is easily inserted into hard hat suspension to keep head cool. Hard hat shades fit almost every hard hat, blocking sun and most UV rays and promoting the evaporation of perspiration at the back of the neck. Also available are hard hat sweatbands with neck shades.