The X1 Small Rectangle Clip On Flip Up Polarized Sunglasses are high-quality clip on sunglasses. These polarized clip on sunglasses are specially designed to fit your eyeglasses and provide the comfort and safety your eyes need. They offer 100% UV protection with a superior polarizing lens system, protecting your eyes from the sun’s damaging rays and blinding glare. With scratch resistant coating, they are available in five lens colors: polarized gray, polarized brown, polarized copper, polarized dark yellow, and blu-gard. Plus, they offer the convenience of just flipping them up or down while boating, fishing, or just driving your car. In addition, the D Clip X1 Small Rectangle Clip On Flip Up Polarized Sunglasses features patented flip up “all metal” mechanisms that are virtually unbreakable, and the metal mechanism from our proprietary “sticky” vinyl clip coating system protects your lenses by preventing slippage and scratching.