The Costa Sullivan sunglasses are a laid-back, coastal-inspired pair designed for both style and performance. Featuring a slightly rounded square frame with a retro keyhole bridge, they offer a modern yet timeless look that works just as well on the water as it does for everyday wear. Built with Costa’s signature polarized 580® lens technology, they provide excellent clarity, reduce glare, and offer full UV protection—making them ideal for bright, sunny conditions. With durable acetate frames and a comfortable medium fit, the Sullivan combines casual style with serious outdoor functionality. Key Features: Polarized 580® lenses for enhanced clarity and glare reduction 100% UV protection for full sun coverage Durable acetate frame with a classic, stylish look Medium fit with a comfortable, everyday feel Rounded square shape with retro keyhole bridge design Scratch-resistant coating for durability and easy cleaning Ideal for outdoor use—especially fishing, boating, and sunny environments