Quote Originally Posted by jcole View Post
All fabric has selvages; it's part of the weaving process. I gather what the difference is with these jeans is that they use the selvage edge as part of their seam. They must lay the pattern on the edges of the fabric so that the jean has selvages included on the outside seam. I don't think there is any way to have the selvage on both the inner and outer seam.
That's pretty much it. In "non-selvege" jeans, they cut the fabric to size and use the seam to seal the cut end. You can tell because the seam will have a mass of splayed fibers running along it - the end of the fabric that's been cut.