Aviator sunglasses don't have to be round. Take a look at these boxy aviator shades for men by Khan. The lenses have a squared off look, unique in this style of sunglasses. They are dark with a gradient finish to give added privacy and maximum protection from the sun. The frame is plastic, and the arms are metal, designed for strength, flexibility and comfort. The arms are straight and feature a striped pattern that flows to the plastic earpieces.