Persol PO3092SM sunglasses are an elegantly shaped pair of frames, in the sophisticated, versatile Persol style Expertly hand-crafted in Lauriano, Italy since 1917, Persol is one of the most distinguished eyewear brands known for their refined, timeless style. Full Rim made from durable and hypoallergenic acetate. For men or women (Unisex) Classic keyhole bridge Oval shaped lenses suit many face shapes Features Persol's Meflecto technology, a flexible stem system which encourages the temples to adapt to the shape of your head without the need for adjustments and eliminates pressure on the sides of the head. The iconic Persol silver arrow and double band are displayed on the temple Available with prescription lenses here Come in a Persol protective carrying case with cleaning cloth. These sunglasses are available with a mirror coating option on certain colors. Mirror coatings are suitable for protection from intense light. A mirror coating reflects back light and reduces the amount of light passing through the lens. This makes it more comfortable for eyes in very sunny conditions.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.