RALPH by Ralph Lauren RA5181 sunglasses pay homage to yesteryear with a modern twist With over 40 years experience steeped in the tradition of delivering exceptional fashion, Ralph Lauren has built a reputation for delivering eye-catching hues, bold designs and vintage styles Constructed from propionate, these full rim frames for women are designed to keep you looking your best while protecting your eyes from harmful UV rays These oval shaped shades feature single bridges ideal for thinner faces Available in sophisticated black featuring patterned temples and gray gradient lenses or dark tortoise with brown gradient polarized lenses Each color choice features signature RALPH branding on the temples for the perfect finish Due to manufacturer’s restrictions, Ralph Lauren products cannot be shipped to Australia.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.