Vision ChromaPop™ Glass Polarchromic lenses combine the glare-free benefits of advanced polarization with UV-sensitive, self-tint-adjusting to bring you lenses that adapt to changing light conditions, so you always have the perfect tint for the amount of light Smudge and moisture resistant coating for easy cleaning and clear optics Anti-reflective coating improves clarity and reduces eye strain 100% UV protection Fit / Integration Medium-large fit, medium-large coverage 8-base lens curvature offers a wraparound fit Megol temple and nose pads provide non-slip grip so glasses stay put Spring hinges self adjust to your face for a snug, comfortable fit