Built for watermen who demand performance and style, the Costa Fly Line sunglasses blend innovative craftsmanship with functional design. The sleek rectangular frames in black nylon and propionate offer a modern edge, making them perfect black sunglasses for men seeking both practicality and aesthetics. With an 8-base wrap enhancing coverage and shielding against the elements, these Costa sunglasses excel in outdoor performance. Featuring double-injected hydrolite on the nose and temple tips for superior comfort and a secure fit, they handle all-day adventures with ease. Equipped with polarized grey lenses, these polarized sunglasses for men deliver premium glare reduction and 100% UVA/UVB protection, ensuring crystal-clear vision no matter the conditions. Retainer-ready temple tips add convenience, making the Fly Line a reliable companion for those who live for the cast and chase horizons.