DESC: Smith Action Optics Sunglasses Vector - Medium Fit. TR90 Grilamid frame with Megol nose and temple pads provides the strength and flexibility to survive the daily grind. 59mm 8 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.