The Roam(TM) goggle has many of the amenities found on the premium line, including a wide field of view with EXV Technology, an anti-fog coating, and Seamless Compatibility with all Giro helmets, at an affordable price point. You&';re also sure to appreciate the double-layer face foam with microfleece facing, so you&';ll have a soft feel when you&';re adventuring. As an added bonus, the Roam ships with a second, low-light lens, so you&';ll be ready if the weather quickly changes from sunny to overcast. Specs : Expansion View Technology: Expansion View Technology (EXV) Extras : Includes bonus low-light lens Frame : Adult Medium Frame Design Face Foam ; Double-layer face foam with microfleece facing Vlt Percentage : 39 ,84 Anti-Fog Coating : Anti-fog coating HIGHLIGHTS : PressFit Lens Interchange System Cylindrical Thermoformed Lens Over-the-glasses (OTG) friendly Seamless Compatibility with all Giro helmets