Smith Backcast Sunglasses: Advanced Polarization for Everyday WearThe Smith Backcast sunglasses are engineered for those who need superior glare-cutting technology, making them perfect for both water adventures and daily use. These sunglasses are equipped with ChromaPop™ Glass Polarized lenses to enhance color and contrast while also being highly scratch-resistant.Designed with a medium to large fit, they offer a comfortable wraparound style to ensure a secure fit. The lenses feature UV-sensitive, tint-adjusting technology for optimal vision in changing light conditions. Polarized lenses for superior glare reduction AutoLock hinges for easy one-hand on and off Megol temple and nose pads for a secure, non-slip fit Lightweight Evolve™ bio-based frame material These sunglasses come with a microfiber pouch and a Smith branded hard case, ensuring they are protected and ready for your next adventure.