Whether you're dropping in on a hike-to line or charging through a storm day at the resort, the Smith 4D XL goggles set you up with the best field of view possible. They combine the unmatched peripheral range of our BirdsEye Vision lens with an oversize XL frame and the terrain boosting optics of ChromaPop, so you don't miss a wind lip or terrain change. Our MAG lens-change tech lets you swap lenses to match the light conditions with ease. Their XL size makes them the only OTG compatible goggles in our 4D lineup. Buckle up and embrace the fall line with confidence. Fine-tune your kit with additional or replacement goggle lenses for sunny conditions, variable conditions, and cloudy conditions. Expand your view here. Expand Your World: See new potential with Birdseye Vision, our largest field of view. Featured in the 4D MAG series. ChromaPop: ChromaPop lens technology delivers enhanced color, clarity, and definition. BirdsEye Vision: BirdsEye Vision clarifies not just your line, but the riders in your periphery. Increasing your field of view by 25%. Ultimate Integration: AirEvac ventilation system integrates with Smith helmets for fog-free lenses. ChromaPop Sun Blue Mirror: Perfect for cloudless, blazing light conditions, these lenses feature a grey base with rich blue mirror ease the harsh glare of high elevation sun while helping your eyes see more information in the terrain ahead of you. (VLT = 12%) Features: Vision: Smith MAG lens change system uses magnets for quick, easy lens changes ChromaPop lenses enhance contrast and natural color to make the details pop BirdsEye Vision clarifies not just your line, but the riders in your periphery 5X anti-fog inner lens for advanced fog-free performance Over the glasses (OTG) compatible Provides 100% protection against UVA / UVB Fit / Integration: Designed for ultimate integration with Smith helmets for maximum comfort, venting and fog-free performance QuickFit strap adjustment system lets you find the right fit fast Ul