Featuring Condensed Cranial Geometry, Oakleys SI Fives Squared Sunglasses are so sleek and comfortable youll forget youre wearing them. Plutonite lenses block 100% of UVA, UVB, UVC and harmful blue light up to 40nm while maximizing clarity. Three-point fit ensures the glasses remain in precise optical alignment for all-day comfort. Lightweight yet durable O Matter frames. High Definition Optics allow Oakley eyewear to meet or exceed the testing standards of the American National Standards Institute for optical clarity, visual fidelity and impact resistance. Nonpolarized. Type: Non Polarized.