Navigate your next adventure with the Costa 6S9131 Mainsail XL sunglasses, crafted for water enthusiasts who demand performance and bold style. These full-rim tortoise sunglasses for men, made from durable nylon and propionate, deliver a square shape with sharp lines for a modern edge. Mirrored gold polarized lenses cut through glare and heighten contrast, offering precise clarity under the sun. Designed with functional details like vented nose pads to reduce fogging and micro side shields for enhanced coverage, these Costa sunglasses are perfect for chasing horizons. Retainer-ready temple tips add versatility for life on the water. Dive in and See What's Out There.