Nation

Costa's two newest models, the Corbina and Fisch, both get non-slip Hydrolite lining around their frames' interiors, are available in black, tortoise, or silver frames, and have polarized lens options like lightweight CR-39, or an array of high-def 580 glass hues, which blocks disruptive yellow light -- proving yellow is the raving battle-axe of all colors, and won't let you see other colors, so you should break up with her right away.