HD POLARIZED LENS --- Scratch proof and unbreakable TAC lens, which provides reduced glare for clearer vision in the sun. The quality polarized lens is designed to counteract the light from each other to achieve the goal of reducing reflection, and filter out 100% of harmful UVA & UVB, that will keep your eye healthy and clear, make the scene more clear and soft, for most other sports and activities, polarized sunglasses offer great advantages.