KN-M3940Aviator sunglasses with a shield style lens are a unique design by Khan specifically made for men. The large gradient lenses offer great eye protection as well as privacy to the wearer. The frame is a combination of metal and plastic, strong and rigid where it needs to be and flexible and comfortable as well. The arms sport the Khan logo on the side and feature cool design elements throughout. The arms taper and curve sharply at the ear for better fit.