Ocean Ridge 200 are designed for those who move, featuring lightweight, great-fitting active frames, made from Costa's Bio-Resin nylon. The material is strong, allowing the frames to hold their shape in heat and cold weather, and trifusion frame technology results in unique color combinations. Costa Del Mar eyeglass frames feature lenses that need to be replaced with prescription lenses so you can enjoy clear vision. Costa Del Mar eyeglass frames sold by authorized sellers like Amazon are eligible for all manufacturer warranties. Included is a microbag and cleaning cloth. Click on the Costa Del Mar link above the product title to shop the entire assortment.