And you thought your titanium frames were light! These Grafton Carbon Fiber Sunglasses are manufactured using carbon fiber reinforced polymer that is also widely used in motorsports, performance outdoor sporting goods and in aerospace due its high strength-to-weight ratio. This allows for the frames to be both light, scratch resistant and extremely strong. By molding the frames under pressure, it ensures that the functional properties of the carbon fiber composite is maximised. The design also features robust stainless steel hinges and polarised lenses which includes a variety of advanced optical features to protect your eyes, reduce eyestrain, and allow you to see the world in the clearest way possible.