Here we have some conductive ribbon.
Essentially, it's a fabric with 3 conductors woven into the ribbon.
It measures roughly 5mm wide and 0.7mm thick.
You will get a 90cm section of ribbon. It has very little (negligible) resistance to it.
The material is 68% tinsel and 32% polyester.

Since it has 3 discrete conductors in it, you can transmit power, ground, and signal with a single ribbon!
It's relatively flexible and durable. As long as your iron isn't too hot, it solders easily and makes for a good addition to any wearable electronics project.

Documents:

• Datasheet

Tutorial

Soldering the ribbon

tin the ribbon with solder

make sure you solder all 3 strands

always check for shorts when you finish soldering

make sure your ribbon does not look "shorted" (strands touching each other)

tin the pads of the brick you want to attach the ribbon to

solder the ribbon on the pads

once you finish attaching the ribbon to the pads check for shorts!