Mainsail is a performance/lifestyle frame featuring micro side shields and hooding to reduce excess light, Hydrolite grips at the temples, and eyewire drains/channels to manage water and sweat. The Green Mirror 580G lens has a copper base and 10% light transmission, designed for high contrast and inshore/flats sight fishing in full sun.

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.

The New Jersey beaches of Cape May are rich in history and East Coast American flair. The Costa May is a regular fit, refined large square lens shaped women's acetate frame that comes in four ocean-inspired colors reflective of its namesake; where the Delaware River meets the Atlantic Ocean. The Costa May Polarized Sunglasses have intelligent and sophisticated styling, like the iconic Victorian houses that line the shores of this destination coastal town.Sunglasses inspired by a life on the water, colors, patterns and textures that capture the spirit of the sea. And because they come with 580G lenses, you'll be able to soak up every detail while you're soaking up the sun. Model name: May Collection: Del Mar Item no: MAY 210 OGMGLP Frame color: Shiny Tiger Cowrie Lens color: Green Mirror Lens material: Polarized Glass (580G) Frame fit: Regular Size: M Nosepad adjustable: No Lens curve: Base 6 Lens Category: 3P

The Costa Mooring is a round, wide-fit lifestyle sunglass from Costa’s newer NetPlus lineup. The NetPlus Black frame is made with recycled fishing-net material and paired with Costa’s premium Copper Silver Mirror 580G polarized glass lenses for excellent clarity, glare reduction, and scratch resistance. The Copper Silver Mirror 580G lens uses a copper base with 12% light transmission, giving you enhanced contrast in changing light. Costa recommends this lens for inshore and stream fishing, sight fishing, cloudy conditions, and everyday use. Costa’s 580 lens technology also filters harsh yellow light and enhances reds, greens, and blues.  

The Costa Mooring is a round, wide-fit lifestyle sunglass built with Costa’s NetPlus® frame material, made using recycled fishing nets. The Black frame is paired with Green Mirror 580G polarized glass lenses for premium clarity, glare reduction, and scratch resistance. The Green Mirror 580G lens uses a copper base with 10% light transmission, enhancing contrast and color definition for inshore fishing, flats fishing, sight fishing, and bright full-sun conditions. Costa’s 580 technology also filters harsh yellow and high-energy blue light while enhancing reds, greens, and blues

The Costa Nusa is a bold, slightly oversized handmade frame made from bio-acetate, with a translucent Deep Crystal Aquamarine finish and inset polarized glass lenses. The Gray Gradient 580G lenses provide Costa’s premium glass clarity, 100% polarization, and full UV protection, while the C-Wall coating helps resist scratches, water, oil, and sweat. Costa describes the gray-gradient lens as providing a cool, natural view with enhanced contrast for versatile everyday and outdoor use. Manufacturer specs: XL / wide fit, 54 mm lens width, 19 mm bridge, 145 mm temple length, 139 mm frame width, Base 6 curve, and item number 6S2016 201604 54-19.

The Costa Paunch combines a clean, casual square profile with performance features designed for life on and around the water. The translucent Matte Smoke Crystal Bio-Resin™ frame features textured Hydrolite® rubber nose pads for a comfortable, secure fit, while its medium-coverage Base 6 design makes it versatile enough for fishing, boating, beach days, and everyday wear. Costa’s polarized 580 lens technology reduces reflected glare, enhances color and contrast, and provides 100% UV protection. The Blue Mirror 580P version is lightweight and especially suited for bright offshore conditions, while the Green Mirror 580G version provides premium glass clarity and excellent contrast for inshore and variable-light conditions.

The Costa Paunch combines a clean, casual square profile with performance features designed for life on and around the water. The translucent Matte Smoke Crystal Bio-Resin™ frame features textured Hydrolite® rubber nose pads for a comfortable, secure fit, while its medium-coverage Base 6 design makes it versatile enough for fishing, boating, beach days, and everyday wear. Costa’s polarized 580 lens technology reduces reflected glare, enhances color and contrast, and provides 100% UV protection. The Blue Mirror 580P version is lightweight and especially suited for bright offshore conditions, while the Green Mirror 580G version provides premium glass clarity and excellent contrast for inshore and variable-light conditions.

The Costa Permit is an XL performance fishing sunglass built for maximum coverage on the water. The Matte Black frame features co-injected Hydrolite™ lining, flexible hinges and side vents to improve grip, comfort and airflow. The Blue Mirror 580G polarized glass lenses use a gray base with 10% light transmission, making them ideal for bright sun, offshore fishing, deep water and highly reflective open-water conditions. Costa's 580G glass provides excellent optical clarity, glare reduction and scratch resistance  

The Permit is a high-coverage performance fishing frame with co-injected Hydrolite grip, flexible hinges and side vents. The Green Mirror 580G lens uses a copper base to enhance contrast and is particularly suited to bright inshore and flats fishing.  

The Costa Piper combines a lightweight metal frame with Costa’s performance-driven lens technology for a classic, refined look built for life on and off the water. The Gold frame provides a polished finish, while the comfortable design makes Piper an excellent choice for all-day wear. Costa’s Green Mirror 580G polarized glass lenses are particularly well suited for inshore fishing and environments with changing light conditions. The copper-based lens enhances contrast and definition, while the green mirror helps reduce glare. Costa 580G glass provides exceptional optical clarity, superior scratch resistance, and 100% UV protection. Model: PiperFrame Color: GoldLens Color: Green MirrorLens Material: Polarized Glass (580G)Fit: RegularBest For: Inshore fishing, boating, and everyday outdoor use

The Reefton PRO is a large performance fishing frame with Costa’s PRO upgrades, including sweat-management channels and eyewire drains, improved Hydrolite grip, fully adjustable nose pads, top hooding and side shields to reduce light intrusion, and metal keeper slots. The Gray Silver Mirror 580G glass lens provides polarized glare reduction, high optical clarity and scratch resistance, with a neutral gray tint that works especially well in bright, full-sun conditions.