This frame size is Small with a hinge to hinge measurement of 125 mm. Ideal for narrow to average faces. LENS MATERIAL: Costa's 580 Polycarbonate provides high clarity, impact- and scratch-resistance along with lightweight all day wear-ability. LENS COLOR: Blue Mirror Polarized is best for bright, full-sun situations on the open water and offshore. 100% UV PROTECTION: To protect your eyes from harmful UV rays, these Costa Del Mar sunglasses include lenses that are coated with 100% UV protection. FRAME FEATURES: Street Heat blends performance with modern street style. Micro side-shields and hooding provide extra coverage and protection, and matte black frame is made from strong Bio-Resin nylon that holds its shape in any temperature. PROTECTIVE CASE AND CLEANING CLOTH: Costa case and cleaning cloth included to keep your Costa's safe while you are getting after it. VISIT THE COSTA DEL MAR BRAND SHOP: Click on the Costa Del Mar link above the product title to shop the entire Costa Del Mar sunglass and eyeglass assortment.