Available now PVC imitation HYPALON rubber cloth 0.7mm/1.0mm fine grain tear resistant fabric From the beginning, MICOOSON has always used CSM from DuPont with the brand name Hypalon®. DuPont stopped producing Chlorosulphon polyethylene (CSM) in 2010 so that the Hypalon® brand no longer exists. But Achilles still uses Chlorosulphon polyethylene (CSM) manufactured to the same demanding specifications as Hypalon®.