Meet the Costa 6S2002 Sullivan sunglasses—crafted for those who live their days in sync with the waves. These brown sunglasses for unisex feature square frames with a bold design, defined by sharp angles and rich brown acetate, evoking a clean, modern aesthetic. The polarized sunglasses with copper lenses intercept glare and reflections to enhance contrast and clarity, while providing advanced 100% UVA/UVB protection. A retro-inspired key-hole bridge ensures a comfortable fit, ideal for effortless days spent by the coast. Born on the water, Sullivan blends relaxed sophistication with performance—all in signature Costa style. See What's Out There.