The foam I used I found at the local Joann Fabrics. It is the usual soft polyurethane foam, 4mm thick, with a woven fabric support layer bonded to each side.
Beyond that I'm not sure how to 'designate' it for a web search. Hopefully the pics may help you if you show them to the staff at a good fabric store...
Dan
Beyond that I'm not sure how to 'designate' it for a web search. Hopefully the pics may help you if you show them to the staff at a good fabric store...
Dan