Indirect ventilation systemchannels air flow over lens.This minimizes fogging and improves vision while still providing superior splash and impact protectionSpecially designed Rx carrier provides unique protection to workers requiring prescription eyewearFlexible elastomer seal stays amazingly soft, pliable and comfortable for the life of the frame - The result is a superior fit around the nose, cheeks and foreheadQuick-adjust headband clips permit fast and easy fitting, even on hardhats - Once adjusted correctly the textured headband won't slipFrame and lens are impact resistant and provide greater than 99.9% protection from harmful UV raysThe dual-action hydrophilic and hydrophobic HydroShield® Anti-Fog Coating lens provides consistent 90X longer lasting fog-free performance* than majority of other anti-fog coatings — even after extended wear and repeated cleanings – and provides 2X greater scratch-resistance