The Bolle Z5 OTG Photochromic Ski Goggle is a cylindrical goggle allowing prescription wearers to benefit from the best of Bolle technologies, such as exceptional ventilation and double density foam. Features photochromic lens which darken on exposure to specific types of light of sufficient intensity, most commonly UV radiation A high-tech protective armor applied to the outer lens creates a shield to significantly reduce scratching, keeping your lenses and outlook as clear as a bluebird sky Creation of a dual-pane thermal barrier between the cold dry outside air and the moisture generated by intense activity prevents distracting condensation from forming Embedded premium anti-fog layer in the inner lens disperses water molecules across the surface of the lens, restricting moisture build-up that can impede your crystal clear view of the terrain ahead Engineered venting system promotes directional airflow across the inside surface of the lens, reducing the potential for moisture build-up and maintaining your pristine vision Strategically located channels cut into the foam ensure optical glasses fit perfectly; with pressure virtually eliminated, wearing glasses with goggles no longer feels like a compromise Sport Optical System prescription adapter easily snaps into place to provide the corrective vision required while maintaining the wide field of view Siliconized strap helps provide total support for the goggle on the helmet Medium density foam backs up a soft micro-fleece face layer
