I have ordered the sunglasses as an accessory to my hippie costume. The glasses are well made, very light and can be set up very well and lose weight. Due to the spring hinges and the rubberized ends it sits comfortably. Thus, it is a thousand times better than the cheapest supermarket variants. It's also great that the glasses are nickel tested. This was not clear from the article description, only an enclosed tag with references to a test standard. As nickel allergies I am therefore thrilled. Since I have only been a few days, I can make no statement about the durability, but I hope due to the overall impression that it is made to last. For my part, a strong buy recommendation!