Experience the synergy of style and optical performance in oakley hstn sunglasses. These round-shaped glasses feature a matte carbon frame made from o matter material, known for its durability and lightweight comfort. O matter is designed to withstand whatever life throws at you, making these shades an ideal choice for everyday wear. The prizm tungsten lenses offer superior color and contrast so you can see every detail with clarity, ensuring not only a stylish look but also practical protection from the sun's rays. Available with prescription lenses.