As many readers know, the point of buying jeans made from high-quality denim is to get something that will age well and look better with time. In the process of wearing your jeans hard, however, you’ll find that certain stress points can “blow out,” particularly around the pockets, hem, crotch, knees, and buttonholes. A tailor or denim repair specialist can fix these for you, usually by using a technique called “darning.”
Darning is a process where you essentially “reweave” new yarns into an area that has been worn thin or completely blown out. A friend of mine recently darned my 3sixteens, and I just got them back this weekend. The first photo above shows my jeans before they were repaired, and the second shows them after. The jeans were getting a bit thin after about eight months of effective wear, but after some darning, the weak areas have been reinforced and they’re as study as they day they came.
Generally speaking, you want to repair your jeans at the first sign of danger. Like all fabrics, denim is woven with yarns running lengthwise (called the warp), and transverse threads running the width (called the weft). On denim, the blue warp yarns are typically the first to give out, so you know what areas are in danger of “blowing out” when you only see the white weft yarns holding an area together. If not taken care of soon, the area can suddenly just rip. The worse the damage, the more noticeable the repair will be. (Though, even with a badly ripped area, a good tailor can perform a pretty good repair. Here’s a particularly impressive job over at Superdenim, posted in a thread about just this topic.)
Many tailors can darn your jeans for a reasonably small fee, but if you’re not sure who to go to, or if your jeans are particularly dear to you, you may want to go to a specialty shop. Operations such Self Edge, Blue in Green, Denim Doctors, Denim Therapy, Schaeffer’s Garment Hotel, and Denim Surgeon are commonly recommended in the denim community. Some of these places might charge a little more than your local tailor, but you can be sure they’ll also do an excellent job.
If you’re feeling up for the challenge, you can also learn how to darn your own jeans. These two ladies have a tutorial on YouTube, and The Bandanna Almanac has a post on how to darn by hand. I imagine the second technique won’t give you something sturdy enough for jeans, but it looks like a neat thing to learn.