Dive into bold performance with the Costa 6S9129 Fly Line sunglasses. Designed for watermen who demand precision and durability, these full-rim rectangular frames offer sleek definition and modern styling. Crafted from nylon and propionate, they're lightweight yet tough enough to handle the elements. The polarized grey lenses cut through glare and enhance contrast for crystal-clear views, backed by advanced UVA/UVB protection. Perfect as Costa sunglasses for men, they are equipped with double-injected hydrolite on the nose and temple tips for secure comfort and retainer-ready temple tips for extra versatility. The Fly Line is built for those born on the water.