Costa Tuna Alley Pro Sunglasses (580G Glass)

PRO Series frame. 580G glass lenses. Built for offshore captains.

The Costa Tuna Alley Pro with 580G glass lenses is Costa's offshore flagship — a PRO Series frame on the Tuna Alley platform paired with Costa's premier glass lens technology. 580G lenses are 20% thinner and 22% lighter than typical polarized glass while delivering superior clarity and scratch resistance over polycarbonate alternatives. The PRO Series frame upgrades include a re-engineered vented hinge system to promote airflow, sweat management channels and eyewire drains, improved Hydrolite® rubber that stays grippy when wet, adjustable nose pads, top hooding and side shields to block peripheral glare, and metal keeper slots. Seven frame/lens combinations covering everything from offshore blue water to inshore flats.

Key Features

• 580G polarized glass lenses — Costa's premier optical performance
• 20% thinner, 22% lighter than typical polarized glass
• Superior clarity and scratch resistance vs. polycarbonate
• PRO Series frame with re-engineered vented hinge system
• Sweat management channels and eyewire drains
• Improved Hydrolite® rubber stays grippy when wet
• Adjustable nose pads, top hooding, side shields, metal keeper slots
• Large fit, Base 8 decentered lens curve

Specs

Lens Guidance

• Blue Mirror: bright sun, open offshore water, harsh sun — gray base, 10% light transmission
• Green Mirror: sight fishing on flats, inshore work — copper base, 10% light transmission, enhanced contrast
• Gray Mirror: everyday all-around — gray base, 12% light transmission, natural contrast
• Always wear with a Costa retainer offshore — glass lenses don't float
• Rinse with fresh water after every saltwater session

Why We Like It

The PRO Series frame is a real upgrade over the original Tuna Alley — vented hinges actually help with airflow on hot August offshore days, the top hooding cuts the light bleed serious anglers complain about, and adjustable nose pads mean the frame stays put when you're leaning into a fish. 580G glass is the gold standard for full-day wear: if you're spending 8-10 hours a day on the water, the optical clarity and scratch resistance pay back vs. polycarbonate. The Matte Black with Blue Mirror is the everyday offshore pick.