I bought a sample kit from lighttape.com. you can get them in various lengths, mine was 2" wide and that's just electrical tape on top to create the design.
The pieces in the pocket area and in the bit hanging off the bottom are actually glow shoe laces I bought off of amazon. They were like $6 for a pair, and that was all I had on version 1.0. I added the light tape later but the shoe laces were good for on a budget tron gear. another advantage is that it is completely flexible compared to EL wire.