Created to be highly durable with controlled flexibility the O Matter frame provides superior protection with the comfort and performance that you need. Whether you are working hard or not, the Oakley Fives Squared will not let you down. The High Definition Optics (HDO) means the lens gives you a more accurate and clear vision across the lens and reduces distortion that you might get with ordinary lenses. Your sunglasses will also exceed the impact-resistance standards of the American National Standards Institute while giving 100% proctection from all UVA, UVB, UVC and harmful blue light up to 400 nanometres, making them perfect for activities in which strength and accuracy is everything and for those who just want to see the world a little clearer.