6644 N.O.W. Titanium Eyeglasses by Lindberg. Color: C01, C02, C04, C06, C06G, C07, C08, C10, C11, C12, C14, C19, C20, C21, Size: 49-20-150. Featuring a stretched oval silhouette, 6644 delivers relaxed elegance in ultra-light titanium. Spring-action hinges hug your temples for a seamless fit during active days. The frame's polished geometry is elevated by understated temple caps. Soft, stylish, and effortlessly comfortable.