Learn more about Costa Sunglasses Costas Mens Motu Polarized Sunglasses boast a base curvature of 8 that fits the contour of your face for protection that extends to your peripheral vision. Strong TR90 frames deliver longevity. Chose between lightweight, scratch- and impact-resistant polycarbonate lenses or exceptionally clear glass lenses. Polarization reduces glare off reflective surfaces. Blocks 100% of the suns harmful UV rays. Manufacturers lifetime warranty. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Polarized.