These beautiful Gannet sunglasses from Costa del Mar are named after a sea bird that flies 1,800 miles from New Zealand to Australia. They feature a medium-sized frame, Hydrolite nose pads, polarized lenses, and water drop-shaped epoxy fill at the temple tips. The Costa 580 lenses were designed to enhance colors and absorb harmful high-energy blue light. They measure 131.5mm (frame) / 18.6mm (bridge) / 57.9mm (lens width).