For those fans of substance, D28 is a hearty frame made of precision-cut, 100% acetate with “Izquierda” and “Derecha” laser-etched across the top in case you forget which side is left and which is right. A premium hard coating protects its lenses, minimizing scratches. Its lenses also include a high-performance water, dirt, and grease-repellent coating for easy maintenance and superior optics. A premium, bio-based acetate frame with 5-barrel industrial hinges offer supreme durability. A square frame shape means they're ideal for heart, round, and oval faces. CADDIS Turtle Hard coating lens protector High-performance water, dirt, and grease-repellent coating Frame Width - Medium 141 MM Bridge Width - Medium 22 MM Lens Height - (does not include frame) - Medium 41 MM Lens Width - (does not include frame) - Medium 50 MM Bio-based acetate frame with 5-barrel industrial hinges Manufacturer Style No. D28