Costa Del Mar Tuna Alley Sunglasses - Blackout/Blue Mirror 580G
At the right time of year, from Tuna Alley, the legendary 15-mile long white strip of sand separating the deep blue Bahamian waters from the shallow bank of Gun Cay, you can spy tons of Bluefin tuna, migrating north. And with these bad boys on, with their integral hinges, patented vented system and tough-as-nails nylon material, you won't miss many.

Costa's co-injected bio-based nylon frame material is both tough and durable, while offering a comfortable fit. TR-90 nylon is a premier material for sports and performance frames as it is resistant to heat and cold. Though it is flexible, it is still durable. Nylon is easily molded into Costa's iconic wraparound shape.

Features:

• Frame Color: Blackout
• Lens Color: Blue Mirror
• Lens Material: Polarized Glass (580)
• Frame Fit: Regular
• Prescription Ready: Yes