Mamane has features inspired by flowers and butterflies. PolarizedPlus2 technology shields eyes from glare and harmful UV with vivid colors. SuperThin glass lenses provides the crispest optics. Neutral gray lens offer the highest available light reduction. Best compliments heart oblong square and oval face shapes. Tortoise high density acetate frame. Saddle-style fixed bridge. Spring hinge. 6 Base curve. 140mm temple. 18mm Bridge. 55mm Eye width. 50.5mm Eye height. 2-Year manufacturer limited warranty. Includes case and cleaning cloth.