Imported Plastic frame Nylon lens Polarized UV Protection Coating coating Lens width: 50 millimeters Bridge: 12 millimeters Arm: 133 millimeters The Sierra Floating Wraparound Frames boast a sporty style that has been around for years. With our slight size revamping this floating style is not only great for activity and sport but this look is also now paving its way into high style. Never worry about losing your shades in the water again! Do Anything. Go Anywhere. Your Everyday Go-To.