Well, first, you should know that this kind of sunglasses is made by Giuseppe ratti. Also, you maybe have heard them from other people. Persol sunglasses are made in Italy and you should know that persol eyeglasses are now famous for their excellent quality and durable eyeglasses and sunglasses. A small silver arrow is the trademark of this company and this symbol can be seen on all of its products. It is not just a normal brand, but also a luxury brand and many famous celebrities have been seen donning a pair of persol eyeglasses. Because they are a kind of luxury, their prices will not be cheap. So if you want to buy them, I will suggest you go to the online shop, which can be cheaper than the real ones. For example, you can link to http://www.visiondirect.com.au/designer-sunglasses/Persol/. They can cost you about 280 dollars. But if you like it, it will be worth the money.