Costa Del Mar Mainsail Sunglasses – Gray Crystal / Green

Step up your outdoor game with the Costa Del Mar Mainsail—designed for serious water enthusiasts. Featuring a sleek rectangle shape in Gray Crystal bio-resin, micro side-shields, hooding, eyewire drains, and Hydrolite® temple grips, this frame holds the glare at bay while staying secure during your toughest outings. Paired with Green Mirror 580® polarized glass lenses, scratch-resistant C-Wall® coating, and 100% UV protection, the Mainsail delivers enhanced clarity, vivid contrast, and long-lasting comfort for everything from sight fishing to beach days.