I have been collecting for years, and these are still my favorite. X-Metal / Ruby (red) Juliet. These are all original Oakley lenses and show the difference in the Ruby coloring over they years. The top is one of the first. It is serial numbered in the X500's. It is very red and the pictures do not show how deep the purple is. The second is serialized X17,000's. It still has a good amount of purple almost as deep as the original gen 1, but covers less area. The bottom is the current version. One of my favorite pairs to wear, just not nearly as red as the originals.