Metal frame Plastic lens Non-polarized Lens width: 58 millimeters NOT RX-ABLE CLEAR LENS – The structure of this SojoS aviator sunglasses is a kind of “metal rim clip-into lens groove”, so it’s non-prescription(not rx-able), please kindly note. The classic form is a good choice for fashion and stylish decoration, which can go with various of features and hair styles. HIGH QUALITY MATERIALS – This SojoS vintage aviator eyeglasses is made of high quality metal material, clear lens and spring hinges, all the details ensure you a long time using. This pilot style item is suitable for both male and female, and it is suitable for any climate and weather conditions. PERFECT ALL ROUNDER – This SojoS eyeglasses is the perfect choice for outdoor sports and activities such as cycling, driving, shopping, travelling, hiking, and is suitable as high fashion accessory and daily wear all year round. It is also gift packaged ready, making it a wonderful yet practical gift idea for friends and family!