The HALF MOON Story You'll look like a Maverick in Costa's Half Moon sunglasses, a West Coast inspired style that rides the mystique of epic ocean swells. With straight temples and double-cut textures, the sporty large fit Half Moon's Integrated Spring Hinges and polarized lenses provide outstanding function and comfort with beautiful aesthetics; While inset Hydrolite nose and temple pads prevent slippage for all-day hard core use.