The Oakley Bisphaera OO9400 940011 sunglasses feature a squared frame made from O_matter, offering a decisive and modern style. The frame is a sleek black, complemented by grey lenses. These sunglasses are recommended for round and oval faces, as they add definition and structure to facial features. They are suitable for both men and women, making them a versatile accessory from Oakley's stylish collection.