Costa Tailfin 580G Sunglasses - Matte Black Blue Color:Matte Black/Blue Mirror 580G Your favorite towel

Your favorite towel

yet functional

Layer it over tees and tanks in the summer

Magnetic button closure

Costa Tailfin 580G Sunglasses - Matte Black Blue Color:Matte Black/Blue Mirror 580G Your favorite towelSome frames are made for the dock. The Costa Tailfin 580G in Matte Black with Blue Mirror glass lenses was made for the moment the tailfin breaks the surface and everything else disappears. Named for the pursuit, the Tailfin is Costa's answer to the angler who needs a frame that moves with them. Lightweight, wrap style, and built around Costa's legendary 580G polarized glass, it's the kind of eyewear that stops feeling like gear and starts feeling