Take the long way home with Longitude. Whether walking, biking or driving, the views you'll experience will inspire every inch of your journey. Longitude is composed of SuperThin (ST) Glass lenses for the most exhilarating views, and a lightweight nylon frame for optimal comfort with a subtly notched keyhole bridge for interest. Find a sense of place while taking in the most colorful, clear, and detailed views with PolarizedPlus2 lens technology.