Designed for athletes with large to extra-large faces, the Hardtop Ultra XP sunglasses are built for high-paced adventure. Interchangeable lens system lets you change from dark lenses for bright light to SportFlex lenses for low light. Fit large to extra-large faces best. N3 lenses block up to four times more infrared light than regular polarized lenses. 100% UV protection. Rugged Rhyno-Tuff AIR frames are light and durable. Gray polarized lenses are best for bright sunlight. Includes a pair of SportFlex nonpolarized lenses for lower-light conditions. Airflow vents prevent lens condensation and fogging. Grippy Cushinol brow pads, nose pads and temple tips prevent slipping. Imported.