•Comfortable medium fit.
•Optical spring hinge.
•Heavy-duty TR 90 nylon frame.
•Includes hard case.
•100% UV light blockage for max protection.
•100% polarization kills reflected glare and reduces eye strain.
•Built by hand and backed for life. Every pair of Costas include a lifetime warranty.
•Plastic lenses are lightweight, impact- and scratch-resistant.
•Glass lenses have the greatest clarity and are scratch resistant.