The Costa Mainsail combines clean, versatile styling with performance features designed for long days on and around the water. The Matte Black Bio-Resin™ frame features Hydrolite™ temple grips for a secure, comfortable fit, along with micro side shields and frame hooding that help reduce unwanted light. Its regular fit and medium coverage make the Mainsail a great choice for fishing, boating, driving, and everyday outdoor wear.

Costa’s Rose 580G polarized glass lenses reduce reflected glare while enhancing color, contrast, and visual definition across a variety of light conditions. Premium 580G glass delivers exceptional optical clarity and excellent scratch resistance while providing 100% UV protection.