DESC: Smith Action Optics Sunglasses Domain - Medium to Large Fit. Custom crafted metal frames feature integrated spring hinges, silicone nose pads and premium materials. 8 base base optical polarized glass lenses. Hydrophobic coatings on both the front and back of the lens sheds water and makes cleaning easier. An anti-reflective coating inside the lens eliminates bothersome sidelight reflections. 100% UV Protection. Lifetime Warranty.