The CARIBBEAN SUN martinique frame features a sleek modern design with comfortable self-adjusting nose pads, spring hinge temple, and style temple tips. At the heart of every pair of CARIBBEAN SUN is our intelligent lens technology (ILTTM) which selectively filters out the bad light and allows the good informational light, to reach your eyes, creating the cleanest and clearest view of the world around you. Eight layers of cutting-edge elements are fused together through a series of advanced coatings. This, along with our proprietary PVA polarizing filter produces a color-balanced lens unmatched in clarity and definition. We've even developed them 20% lighter than traditional layered glass lenses, making the CARIBBEAN SUN ultra-performance polarized lens one of the lightest glass lenses available. 100% UV Protection. 100% Polarized.