Try on the CK20529 at your local EyeCare Associates location. These tortoise designer eyeglasses from Calvin Klein are perfect for focusing at work or relaxing at home. Made from plastic, these eyeglasses feature a design and can help you see clearly with prescription lenses. At EyeCare Associates, we can build a complete pair of Calvin Klein CK20529 just for you, with custom lenses designed for your vision needs.