Costa 6S9131 Mainsail XL

Set sail with the Costa 6S9131 Mainsail XL, the perfect companion for watermen who demand bold functionality and style. Crafted from durable nylon and propionate, the full-rim square frames in sleek black deliver a modern, structured look. These Costa sunglasses for men feature polarized silver mirrored lenses that not only cut glare but boost contrast, providing crystal-clear vision even in challenging light. Micro side shields and hooded design minimize light leak, while vented nose pads keep things fog-free. Retainer-ready temple tips bring added security, so you can explore with confidence. Designed for those who need water to breathe, these black sunglasses perform as hard as you do.