1. I used a base from Fainelloth Dolls. I pixel shade, but the same general concepts can be applied when tool shading. Outline and fill as desired. I use colors 1 and 4 on a 6- or 7-colored palette, but this is up to you. When pixel shading, the higher the contrast in your palette, the more dramatic your fade wil be.

2. The first trick is to use plenty of highlights on the thighs and knees, using mostly the lightest colors in your palette (or dodging, if you tool shade). This is usually where fading will appear.

3. The other trick is to go heavier with the shadows or burning below the knee. I don't use colors 6 or 7 anywhere in this area, and color 5's hardly used either. These jeans are bootcut and slightly long, so there will be a crease down the front due to extra material.

4. Depending on your shading style, the outline doesn't always have to be your darkest palette color. I used colors 2 and 3, and sometimes even 4 or 5, in certain places. This trick can also be applied to other parts of your doll.

5. I like to dither parts of my jeans, as you can see. It gives a rougher effect to the fabric if you pixel shade. It can also be helpful if you use the smudge tool to shade, since you might not lose as much texture. (Some people recommend the Noise filter to add texture, but I generally don't use it for that purpose.)

6. Don't forget your details - seams, rivets, buttons/snaps, belt loops if needed, maybe some embellishments or rips, etc. I was lucky here and only needed parts of the seams.

Experiments with different palettes and contrasts...and my final result.