Hi Lilly,
That makes much more sense since Dunlop Foams doesn’t make Neoprene but they do make a wide range of polyurethane foams.
Assuming that you are in Australia … post #2 here also has links to most of the Australian forum posts and topics and a link to a list of some of the Australian manufacturers with some comments as well (although I’m not that familiar with the Australian market).
Phoenix