Jeans thread is just 12 weight thread. You do need to adjust your tension, let the heavier thread lay more on top, and use a light weight thread in the bobbin. You will need a large size denim needle but it is very do-able. It makes a wonderful texture to your quilting on the top of the project. The back stitching will basically disappear as it is drawn up to the top. 12 weight thread also comes in delicious variegated tones. Do a practice piece before starting on your project to be sure your tension settings will work. I have used this many times when doing a stipple, when making a tote bag with self quilted fabric I will quilt on just the top fabric and batting, leaving the lining to be added later. Try it, it is kind of fun.