The Costa Mainsail XL Polarized Sunglasses are built for anglers who need extra-large fit, extended coverage, and dependable glare reduction for long days on the water. Designed for fishing, boating, and coastal use, the Mainsail XL delivers the same proven performance as the Mainsail with a roomier, more comfortable fit for larger face profiles.
Equipped with Costa’s premium polarized lenses, the Mainsail XL cuts harsh surface glare while improving clarity and contrast—helping anglers better read water conditions, track bait, and stay focused in bright sun. Whether you're fishing offshore, working inshore structure, or spending the day on open water, the lenses provide reliable visual performance where it matters most.
The XL frame offers increased width and coverage without adding unnecessary bulk or pressure, making it ideal for all-day wear. Built from lightweight, durable bio-resin, the frame is designed to handle saltwater environments while maintaining comfort. Hydrolite® nose pads and temple tips enhance grip, keeping the sunglasses secure in heat, humidity, and active conditions.
Designed for anglers who need more room without sacrificing performance, the Mainsail XL delivers comfort, stability, and clarity for serious time on the water.
Key Features
• Extra-large fit sunglasses for extended coverage and comfort
• Premium Costa polarized lenses for glare reduction and clarity
• Lightweight, durable bio-resin frame
• Hydrolite® nose and temple pads for improved grip
• Designed specifically for larger face profiles
• Built for bright, reflective water conditions
• Comfortable for all-day wear on and off the water
Best For
• Offshore Fishing
• Inshore Fishing
• Flats Fishing
• Boating
• Bright Sun Conditions
• Open Water Fishing
• Coastal Use
• Everyday Outdoor Wear
Premier Tackle Insight
We carry what works—and the Mainsail XL is perfect for anglers who need a true larger fit without compromising performance. Comfortable, secure, and built for the water, it’s a reliable choice for long days in the sun.