Inspired by the legions of birds that thrive by the coast, Costa sunglasses like the 6S4003 Wader are purpose-built for life on the water. Featuring sleek rectangular metal frames in grey and lightweight temples crafted from injected material, these grey sunglasses deliver both sophistication and durability. Polarized lenses with advanced UVA/UVB protection and mirrored coating take clarity to the next level by cutting glare and enhancing contrast. Fully integrated Hydrolite rubber on the temples ensures a secure, comfortable fit—even in salty conditions. Whether casting lines or exploring horizons, the Wader is always ready for the adventure.