FRAME FEATURES: Bimini Road 500 eyeglass frames feature an aviator, gunmetal frame with bio-acetate temple tips. Bio Acetate honors the world’s water in color and practice by using 67% natural and renewable materials. PRESCRIPTION READY EYEGLASS FRAMES: Costa Del Mar eyeglass frames feature lenses that need to be replaced with prescription lenses so you can enjoy clear vision. CASE & CLEANING CLOTH INCLUDED: Each pair of Costa Del Mar eyeglass frames come with a cleaning cloth and case to clean and protect your eyewear from scratches and damage. 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.