Engineered with Condensed Cranial Geometry for a tapered, sleek fit, the Oakley SI Fives Squared PRIZM sunglasses are a benchmark in tactical functionality. Built on Oakley's signature stress-resistant O-Matter frame, these glasses can handle the rigors of outdoor use and are perfect for shooting, hunting or traveling. They feature high-strength Plutonite polycarbonate lenses, which filter out 100% of UVA, UVB and harmful violet-blue light up to 400 nm. The lenses have a scratch-resistant coating to prevent damage, as well as an anti-fog coating to keep you focused on the target at all times. Oakley's unique Prizm lenses enhance visual contrast between targets and background to optimize shooting precision and reduce eye fatigue. Designed with the signature Three-Point Fit, these sunglasses are comfortable, lightweight and dependable.