LINDBERG only uses a special type of titanium which in addition to being hypoallergenic, this type of titanium is extremely light, flexible and resistant. The patented screwless hinges don't run loose and don't need constant attention.The models in this collection were designed with great attention to detail. The Air Titanium Rim design is particularly understated and timelessly elegant - ideal for any face and any appearance. With the Lindberg NOW range, the brand has set the highest standards. The line is a perfect combination of the latest fashion trends and the subtlety of technical innovation.