These hard hat inserts provide cool comfort 24 to 48 hours when activated in cold water. Ideal for all warm work, Chill-Its® Body Technologies help workers stay cool, fight fatigue, and increase productivity. Both attach conveniently to hard hat suspension headbands to deliver cool comfort where you need it most. Chill-Its Body Technologies are ideal for construction, landscaping, foundries, mining, welders, factories, farming, road crews, boiler rooms, food service, warehouse & delivery, commercial laundry applications, and anywhere heat slows you down • Evaporative cooling process keeps you cool all day, reduces the effects of heat stress, and fights fatigue. • Lightweight, comfortable cotton construction provides all day comfort anywhere heat slows you down. • Super absorbent acrylic polymer activates easily and quickly when soaked in cold water 10-15 minutes. • Remains hydrated, providing cool comfort for 24 to 48 hours. • Reusable, just resoak. • Hook and loop closure quickly fastens hard hat pad in place • Reversible • Sizes: One size • Color: Royal Blue