Giving you new ways of using ski and snowboard goggles, quickshift otg includes the switch air system which guarantees active control of goggle ventilation and comfort through use of two drop-outs on the bottom of the frame. thanks to this julbo innovation, the goggles are totally flexible both going uphill and down, whatever the length or intensity of effort. the frameless construction and cylindrical lens ensure perfect style and fit, while our reactiv photochromic lenses guarantee optimal visual quality, whatever the weather. also available with spectron lenses.Features:- Anatomic frame : Cuts on the frame for more flexibility.- Anti-fog coating : The inner surface of the lens has an additional anti-fog coating.- Cylindrical double lens- Easy Clip : Additional buckle on the back of the strap for improved goggle placement.- Frameless construction- Full silicone strap : Strap lined with a silicone strip for perfect grip.- OTG (over the glasses) foam : Thermoformed double density foam contour adapting perfectly to prescription glasses.- Overstrap : Offset strap for compatibility with all types of helmet.- Polycarbonate lens- Reactiv photochromic lens- Switch Air System : Thanks to two drop-outs on the bottom of the frame, goggles fitted with the SwitchAir system benefit from lighter contact on the face and total venting so they can still be worn even during intense effort. The drop-outs are quick and easy to reattach via- Symmetrical adjustment : Two loops either side of the strap for symmetrical adjustment in the blink of an eye.