Lindberg frames are exquisitely crafted in Denmark. They weigh almost nothing, and their unique spiral hinge makes them nearly impossible to break. Only selling because I have another pair of Lindberg titanium air frames that I prefer. These will come with my prescription lenses, which you can easily have replaced at any Lindberg dealer. (You can find a dealer in most cities, even Santa Fe, NM!) Lindberg dealers will also replace the nose pads and ear loop covers forever, free of charge. the air titanium rim collection The air titanium rim collection is wire frame eyewear – perfected. The collection embodies the LINDBERG design DNA, with uncompromising contemporary design. The designs are motivated by the modern movement of functionalism, an aesthetic and minimalistic design language characterised by the absence of excessive decoration.This is best seen in the iconic hinge, known for the expertly engineered spiral design, stripped of all unnecessary elements like screws and rivets. iconic spiral hinge LINDBERG’s first and highly innovative product line from the mid-eighties, air titanium, featured the signature spiral hinge. The now classic screwless design was part of the groundbreaking rimless eyewear concept created by LINDBERG and architects Dissing+Weitling. It has since been awarded a multitude of prestigious design prizes worldwide and stands as one of the great original Danish designs.