These fit over most size prescription eyeglasses! Each eyepiece gives your glasses a “pocket” of approx. 2″ of vertical room at the widest (middle of eyepiece) part before the foam padding begins. (Each actual lens measures approx. 2″ vertically and 3″ horizontally in diameter). Frame is vented to help prevent fogging. Lenses are shatter resistant polycarbonate, UV400, and also have a special anti-fog coating! These have a very flexible frame and come with a soft micro-fiber pouch! Inside of goggles has padded foam for comfort on your face.To pop out the lenses: First you will be pushing the lenses outward from inside the goggle, not outward facing the front of the goggle. Place your thumb and index finger on the upper, inner corner of each lens (the upper corner closest to the nosepiece) and firmly push outward to pop out.To replace the lenses: Put the top of the lens in (starting with the corner next to the nose) from the OUTSIDE looking at the front of the goggles, and stretch the bottom of the frame over the lens. The frame is extremely flexible so just work with it until the lens is in the grooves of the frame.FastSunglass.com only sells 100% Authentic Brand New Merchandise. All Goggles come with Original Carrying Case, Cleaning Cloth, and Papers just as if you purchased from a Local Store!

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