Polarized Mirrored PRO TECHNOLOGY: The new Costa PRO series includes six new features to keep you out on the water longer - eyewire drains, sweat management channels, adjustable vented nose pads, metal keeper slots, sun hooding and sideshields and frames made with Hydrolite for a secure fit no matter the activity OPTIMAL USAGE: Costa's Copper Silver lenses are our most versatile lenses, excellent for cloudy days, everyday activities and sight fishing COSTA GREY SILVER MIRRORED LENSES: Costa's Grey Silver Mirrored lenses are perfect for offshore fishing, open-water sports, driving or any task in bright-light environments