Free Shipping & Easy Returns! Explore Maui Jim Good Fun - 871 Sunglasses now. These sunglasses are available with polarized lenses on certain colors. Polarized lenses have a filter within the lens that blocks the wavelengths of light that cause glare. They can greatly enhance contrast and allow for greater depth of vision, especially in water. They are ideal for any situation where glare reduction is necessary, like driving or playing sports. The sunglasses are available on certain colors with gradient tinted lenses - Gradient tints are tints that start off at a darker color at the top of a lens and then gradually lighten towards the bottom of the lenses. These tints are great for fashion and for reading outside on sunny days. Gradient coatings work by allowing an appropriate amount of light to filter through in certain areas and less in places where protection is most necessary. About Maui Jim Eyewear Maui Jim has led the eyewear industry by design and innovation since 1980, offering eyes everywhere superior protection from the harmful rays of the sun in its popular line of sunglasses. From iconic shades with patented technologies, to readers perfect for sunny-day pastimes, to the impressively stylish and comfortable daily-wear frames in the Optical line, Maui Jim creates men’s and women’s performance eyewear for any scenario. 100% Authentic Maui Jim FramesDirect.com is an authorized Maui Jim dealer, selling only 100% authentic Maui Jim sunglasses frames and lenses. Polarized with an anti-reflective coating, Maui Jim lenses reveal the vibrant colors of the world while protecting your eyes from the effects of the sun's harsh glare and harmful rays. Satisfaction guaranteed. Additional Information: Maui Lens Colors Information (PDF)