Keep your eyes safe during sunny days with the Revo Eclipse Sunglasses. The EasySwap™ Interchangeable Technology offers adjustments between light adaptive photochromic and monocolor Serilium+ lenses for optimal viewing, and the SuperNova+ photochromic lenses provide automatic adjustments for clear viewing. The polarized NASA lens technology ensures a clear view by minimizing glare and filtering reflected light, and the lightweight frames includes magnets to help secure lenses.