Gradient lenses go from a darker shade at the top to a lighter one at the bottom, so there will be more protection from sunlight the higher one looks through the lens, but the lower one looks through the lens the less protection is offered. An advantage is that one can wear them indoors without fear of tripping over something and also allowing the user to see clearly.
Wayfarer frames are perfect for the rebellious, independent thinker who is looking to take on the world with his new and innovative ideas. Created in 1956, Wayfarer frames are characterized by a trapezoidal frame shape and thicker rims. Round, oval, diamond, and oblong faces work best with Wayfarers