Carrera Flat Top Square w Gradient Lens Color:Black Brown Grad (0807 HA) Two interchangeable ChromaPop performance lenses Color:Black Red Mir (00A4 UZ) Two interchangeable ChromaPop performance lenses in bright and low light options provide unmatched clarity and detail in any alpine condition Curved mirrored lenses feature Field Tint technology that mutes bright light while enhancing your ability to track objects providing a clear view and 100% UV protective coverage when you're moving this model by Carrera features a flat top square shape made from acetate in black Recognizable design elements include the iconic Carrera Flag at left rim edge and gold letter branding at temples