Gradient lenses are some of the more fashionable sunglasses lenses. From oversized to aviator gradient sunglasses, the color changes from the top of the lens to the bottom. Although this faded style has been popular over the past few years, the gradient effect has a somewhat practical purpose. For outdoor wear, gradient sunglasses have a darker portion for the eyes and, if wearing sunglasses indoors, the lighter part – the bottom – is more practical for use. While grey gradient sunglasses can be found, black sunglasses with brown gradient lenses have become the norm for fashionable and practical style. Regardless of whether you’re looking for oversized, shield, or aviator sunglasses, many of these designs have plastic or glass gradient lenses for men and women.