At Bwake, we recognize that a good pair of lenses is more than just a look, it's an essential component to good health Bwake POLARIZED lenses make a big difference Reduce glare reflected off of roads, bodies of water, snow, and other horizontal surfaces. Restore true color, eliminate reflected light and scattered light and protect eyes perfectlyBlock 99%-100% of both UVA and UVB radiationWith premium resin materials and upgraded coating technology that is durable enough for long time usingRevive your old sunglasses within 3 seconds installation by precision-cutting craftmanship1-Year manufacturer guarantee & 60-day risk free trial