O'Neill Anso Polarized Sunglasses With classic rectangular frames, crescent-style temples and a stylish unisex design, the O'Neill Anso Polarized Sunglasses are stylish, comfortable and a perfect fit for all outdoor enthusiasts. You will look and feel great wearing them in any weather and during any outdoor activity. The Anso's frame is sleek, comfortable and lightweight, and its lenses are manufactured from TAC Polarized material. Lenses: Trying to be eco-friendly Let O'Neill help—the Anso features polarized lenses manufactured from natural, renewable materials, mainly eco-polymers from cotton & wood cellulose. With glare protection from the sun both on water and in snow, they're perfect for all outdoor activities and weather conditions. 1mm Triacetate Cellulose (TAC) technology for superior visual and polarization clarity Glare-free vision Optimal visual acuity 100% UVA+B protection High durability Anti-scratch technology Frame: The Anso's frame is built with durability in mind; it's a polycarbonate material that is durable, lightweight, and extremely strong. These frames offer high resistance to breakage and scratching with the ability to hold up in extreme temperatures. With a classic design and water-minded technologies, these sunglasses are stylish, sporty, and look great on everyone!