This is the OTG version of the Skyline model, the Skyline XL ski goggle. Designed to be worn with prescription glasses, this OTG ski goggle has a frameless design for an XXL field of vision. In addition, its large spherical lens improves your peripheral vision. For a unique visual experience, the lens benefits from several of the brand's major technologies. The ChromaPop technology improves contrast while ensuring great optical Comfort. While the Carbonic-X and the TLT technologies ensure that the lens is highly resistant, offering a perfectly sharp vision without optical distortion. In addition, the lenses have a Fog-X anti-fog coating to keep the viewer's vision clear. This mask is also very comfortable to wear over long periods of time thanks to its Responsive Fit frame and its triple density foam that perfectly follows the contours of your face.  The ChromaPop Photochromic Red Mirror is a photochromic lens that lightens or dims according to the ambient light. This gives you the best possible vision in all weather conditions. It has a category 2 to 3 amplitude for use in all weather conditions, whether overcast or sunny. In addition, its red reflective coating provides protection against parasitic reflections responsible for glare. Goggles Smith ---Skyline XL Black Chromapop Photochromic Red Mirror