This is a conductive knit fabric for use in e-textiles. It is silver-plated nylon that is stretchy in one direction. It is highly conductive with a surface resistivity of < 1 ohm/sq. This is a great add-on to any LilyPad project. Medtex 180 Ag Nylon single directional stretch. It is a bit thicker than the Medtex 130.

Notice:If you aren't sure what to do with conductive fabric, you have to check out the Wearable Toy Piano, as well as some of the other cool Instructables.