The Tracker Goggles for youth offer Anon's Full Perimeter Channel Venting ensures maximum airflow, bringing fresh air into the goggle while pulling moisture away from the lens. Additionally, the Tracker Goggles features the Integral Clarity Technology ICT anti fog treatment that delivers crystal clear vision, no matter what the elements throw at you. Starting with a porous cellulose inner lens surface for superior water shedding above and beyond standard acetate lenses, chemically etched ICT anti fog treatment for long lasting clarity is applied to each goggle. ICT works in tandem with full perimeter channel venting to evacuate warm, moist air from the lens area. Wide range of lens tints are offered, covering the entire VLT Visible Light Transmission spectrum, from whiteout to bluebird conditions.The Original Grom.