The aviator has been around since the 1930s, and there's a good reason it keeps showing up on pilots, presidents, and pretty much every leading man of the last fifty years. The shape is genuinely universal. It flatters most face structures, the metal construction stays light on your nose through long days, and the design reads as confident without trying to be loud.
For everyday Australian conditions, a quality aviator covers most situations you'll find yourself in. Long drives, the walk to the beach, a meeting that runs into a sunny afternoon coffee. The wide lens shape blocks more light than a typical fashion frame, and the polarised options handle the kind of glare that comes off bonnets, water, and hot bitumen.