Gradient Lens Benefits:
Gradient lenses enhance visual clarity by blocking overhead sunlight (the top half of the lenses are tinted darker) while minimizing the tint to the lower half of the lenses. This allows for greater sunlight blocking where it's needed while not impairing ground-level eyesight by being too dark. Gradient lenses are great for driving and cell phone use on a sunny day as looking down or straight ahead won't be darkened as much as looking up.
-Natural UV filter
-Lighter, thinner, & more scratch-resistant than plastic
-Highest impact resistance/nearly shatter proof (same material as bulletproof glass)