FeaturesLightweight, cooling acrylic polymersConveniently attaches to hard hat suspension headbandSoak in water 2-5 minutes to activateRemains hydrated for up to 4 hrAttaches to standard hard hat headbandWe stand behind everything we make and guarantee our products to be free of defects in materials and workmanship to the original purchaser for the lifetime of the product, that said, damage, abuse, and/or normal wear are not covered