I wasn't really impressed with what was available to cover my Nord. Everything was either bulky or expensive. I decided to make my own out of an emerald green, spandex like fabric, that had metallic flakes embedded in it. I designed the final shape to be form fitted to my keyboard, with a heavy duty, shock cord that runs along the bottom to tighten or slacken the overall fit. I was very pleased with the final results.
I am currently in the process of doing a detailed write up for this project.