Experience the ultimate in performance with Costa Fantail sunglasses. These shades are built for speed, featuring a matte black rectangle frame with color blackout so you don't have to worry about being seen by fish. The blue mirror lenses provide optimal clarity and protection from harmful UV rays, while also adding an extra touch of style to your look. Crafted from durable materials, these shades will keep you covered on the water all day long so you can focus on catching fish instead of worrying about sun damage or losing your shades in the water.