I want to use sunglasses in summer time but I was not expert in field, I went to sunglasses showroom and he seen many variety of sunglasses, finally I select John Jacobs sunglasses.
This sunglasses color and looking is very nice compare to other sunglasses and main important, its price is cheap.
If you want to use very short time like 1 to 2 hours then use it, if you want to use 3 to 4 hours then not for you because it leave some dark marks on your nose and also pan your ear.