Springe Hinge All Maui Jim sunglasses feature PolarizedPlus2 lens technology that go beyond shielding your eyes from glare and harmful UV rays by enhancing colors to reveal the true beauty of the world around you Enjoy ultimate UV protection combined with premuim style, incredible durability, glare-free vision, and color-boosting patented technologies Blue Hawaii - Our blue mirror coating provides a stylish new look that offers the same amazing color enhancement and clarity as all other Maui Jim lenses. Frames constructed from lightweight, injected nylon, designed for extreme comfort and extended wear time