i believe the company below will lead you to the site where The Edge had his custom shirts made. You won't see his actual number 7 design in any of the categories listed. You would have to click on the custom t-shirts link and let them know what you want. His shirt was made from a combination of materials. if you supply them with reference art I'm sure they are able to create what you're looking for...but it won't be cheap. good luck!!
americana couture
- mark