FRAME FEATURES: Ocean Ridge 800 eyeglass frames feature a rectangular, matte black frame in strong Bio-resin nylon, allowing the frames to hold their shape in heat and cold. 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.