LENS MATERIAL: Costa's most high tech lens - 580 Glass provides superior clarity, ultra scratch-resistant, 100% UV protection and the best polarizing efficiency available. LENS COLOR: Blue Mirrored Polarized is best for bright, full-sun situations on the open water and offshore. FRAME FEATURES: Tybee feature a rectangular, shiny light grey frame with blue mirrored polarized 580G lenses. Inspired by the innumerable shades of water itself, Ocean Current Bio Acetate frames honor the world’s water in color and practice by using 67% natural and renewable materials. 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.