Oakley Sylas sunglasses are a perfect blend of style and performance. The rectangle shape and matte black frame made from o matter material, known for its durability and flexibility, offer a comfortable fit. This o matter material is lightweight yet strong, providing all day comfort in any activity. The lenses are polarized with Prizm Black Polarized lens treatment, providing superior glare reduction and enhanced color contrast for an optimal visual experience. This lens treatment further enhances visibility, making these shades ideal for any activity. Available with prescription lenses.