The 509 Sinister X7 Goggle is the next evolution of our Sinister series. With a 20% increase in face foam for 2X+ helmet sizes, our quick-change magnetic lens system, wide field-of-view, cylindrical anti-fog lens, and frame shuttered venting for even more airflow, these goggles are ready to handle a wide range of weather and snow conditions.FEATURES 20% increase in face foam for 2X+ helmet shell sizes 5MAG lens retention system Soft goggle frame for unparalleled comfort and fit Hard lens frame insures an optimal fit, and a great sealing with 5MAG Lens Retention System OTG, Over The Glasses, compatible Shuttered Venting in frame scoop air in or closes off flow Easily replace lens for varying conditions Improved tints, low light, and contrast improving technologies including polarized, HCS, and photochromatic also available
