Sunglasses eliminate and haze so your eyes are more comfortable and you can see better. Reinforced metal spring hinges offer adjustable arm to fit different head size and face shape. Made of high quality AC and metal material, durable and sturdy. These classic vintage circle sunglasses are and provide 100% polarization efficiency. Perfect for driving, running, racing, boating, fishing, skiing and climbing, trekking, outdoor hiking or other activities enthusiasts.