The Lookout from Zeal Optics is a great goggle for any snowrider looking for a Medium Fit and Medium Coverage. Zeal's Optimum Lens Technology delivers excellent color filtration for added clarity, heightened color and enhanced definition of the snow and terrain around you. Observation Deck Technology replicates the shape of an air traffic control tower and increases your vertical peripheral vision by 20%. The new Rail Lock System in the Frameless Design allows you to slide in and out the included Persimmon Sky Blue Lens when the clouds roll in and the light changes on you. Optimum Lens Technology-Delivers color filtration for added clarity, heightened color and enhanced definition., Observation Deck Technology-Increases vertical peripheral vision by 20%., Rail Lock System-A dual sliding rail that guides, slides and locks your lenses into place., Rimless Frame Design-Wide view., Everclear Anti-Fog-Keeps lenses clear of fog., Upper and Lower Venting-Venting above and below the lens circulates air., Medium Fit/Medium Coverage, Persimmon Sky Blue Lens Included-65% VLT for flat/low-light/nighttime conditions., Race: No, Category: Adult, OTG: No, Special Feature: None, Helmet Compatible: Yes, Spare Lens Included: Yes, Goggle Ventilation: High, Goggle Lens Change: Easy, Frame Size: Medium, Lens Shape: Flat, Lens Type: Mirrored, Model Year: 2022, Product ID: 922057, Model Number: 11879, GTIN: 0685559118798