After some research I finally found that the material used for the cable ducts is a kite fabric. Here in Germany it's called "Spinnaker-Nylon".
Hello to everyone , I would like to know where I could buy the cable management pack for the Ultimaker Original (UMO, UMO+)? If it's not sold, could someone tell me which material I should buy to rebuild it? I would be for an answer to my question very grateful. Best regards from Germany Maschbauer