Kishigo Brisk Cooling Series® Hard Hat Nape Protector Protects your neck and keeps you cool from the sun while wearing your hard hatPromotes comfort and endures safety in high heat conditionsProvides extended cooling comfort and heat stress preventionSelf-adhesive hook & loop tabs allow you to attach to the inside or outside of any hard hat2'' wide high performance reflective materialLightweight, durable and reusableActivated by simply submerging in waterCooling lasts for 5-10 hours & can be re-activated by re-submerging in waterSimple and easy to useHard hat not included