Children's ski goggles: The Bolle ROYAL are suitable for children who are 6 years and older. Italian ventilated dual lenses create a thermal barrier providing a better seal and optical quality. The special patented P80™PLUS/CARBO GLAS technology decreases the risk of the lens getting scratched or foggy. Bolle ski goggles are designed for use with most helmets that are on the market - PERFECT HELMET INTEGRATION. The patented air vents regulate air circulation inside the goggles to prevent fogging. FLOW-TECH™Venting technology;