The Flying Fisherman Cove Polarized Sunglasses feature a medium-fit, square polycarbonate frame that is designed with the serious anglers in mind. It is lightweight with full coverage for optimal polarized viewing. Non-slip nose and temple pads provide great functionality both on and off the water. Polarized triacetate lenses eliminate glare and reduce eye fatigue. They are impact resistant, scratch resistant, lightweight, and durable. AcuTint Lens Coloring System adds color contrast without distorting natural colors, allowing you to see more clearly. They provide 100% protection from harmful UVA and UVB rays. Medium fit Polarized Triacetate Lenses AcuTint Lens Coloring System Hard-coated for scratch resistance Lightweight and durable Maximum UV Protection