Costa Fantail Sunglasses

Sister of the Blackfin. Co-molded frame. Polarized 580P lenses.

The Costa Fantail is the smaller cousin of the legendary Blackfin — same co-molded frame construction, same 580P polarized lens technology, in a medium-fit size that works for anglers with regular-to-smaller faces who find the Blackfin too big. Designed for sight-fishing the flats and spotting structure offshore, the Fantail's polarized 580P lenses cut surface glare like nothing else on the water. Lightweight, durable, and built to stay put when you're poling a flats skiff or running an offshore boat at 30 knots.

Key Features

• Co-molded frame construction — lightweight and durable
• 580P polarized polycarbonate lenses — impact-resistant and color-enhancing
• Green Mirror lens — the bright-light all-around saltwater lens (flats, offshore, sand)
• Base 8 decentered lens curve for true wrap coverage
• Medium fit for regular faces
• Co-injected Hydrolite™ grip points keep the frame in place when you sweat

Specs

Lens Guidance

• Green Mirror (this listing): bright light flats and offshore work; the most versatile saltwater lens
• Pair with a Costa retainer for boat and beach use — these glasses end up overboard otherwise
• Rinse with fresh water after saltwater exposure; the polycarbonate scratches easier than glass, so don't dry-wipe sand off

Why We Like It

Costa's optical quality is what people buy them for — the polarization is the best in the category, and the 580 lens technology genuinely changes what you can see on the water. The Fantail is the right pick for anglers who want full Costa performance without the wide face of the Blackfin or the higher price of the glass 580G models. Polycarbonate is also the right lens choice for surf and kayak fishing where you'd rather not deal with cracked glass.