Roca SunglassesSight fishing requires laser focus on the slightest indicationthat split second opportunity when youll either set the hook or lament over the one that got away. With so much on the line, you need sunglasses that give you every available advantage. Something solid as a rock. Introducing Roca (rock in Spanish), named for the productive Roca Flat near Campeche, Mexico. These are a solid pair of performance shades indeed. Made with tough, bio based nylon,