The Open has an extremely quick and intuitive lens interchange system that allows you to swap lenses in just 6 seconds, to always have the perfect lens for any condition.The toric lens and the ‘’no-frame technology’’ bring the lens up to the end of the frame giving a great field of view both on the horizontal and on the vertical axis.The Open has all the high end features all Out Of’s goggles have:triple density foam, inner silicon grips with fading texture, second lens specifically optimized for bad weather conditions ‘‘Storm’’, created in collaboration with the department of Physics of the University of Milan.Included in the box.1 Extremely quick and easy lens interchange system:in just 6 seconds you can interchange lens to always have the best visibility.2 Second lens ‘‘Storms’’, created in collaboration with the Department of Physics of the University of Milan optimized for bad weather conditions included.3 Zeiss lenses with Ri-pel hydrophobic and oleophobic treatment to have an incredible optical quality.4 All the premium features Out Of’s goggles offer:premium anti-fog, anti-scratch treatment, triple density foam with hypoallergenic fleece, inner silicon grips with fading texture, wide field of view, ‘’no-frame’’ design for an ‘‘all lens’’ look.