Chase the horizon with the Costa 6S9138 San Carlos sunglasses, designed for life on the water. Crafted from durable nylon and propionate, these black sunglasses feature rectangular frames with clean, linear lines for a sleek, bold look. The grey mirrored lenses feature polarized technology that helps reduce glare, enhance contrast, and improve clarity, even in challenging light conditions. With advanced 100% UVA/UVB protection, these Costa sunglasses combine performance and style, making them perfect for those who live to explore and believe life is better on the water.