Finally! Got these panniers from Lucien Switzer of Switzertassen in Amsterdam who specializes in making these bags "tassen" from the same material they use for the sails of boats "de zeilmakers". It took a few months of exchanges but it finally arrived the other day and I fitted it to the Gazelle. I don't know if I am going to keep it on this one or put it on the older dutch bike. The problem is that it immobilizes my rear rack from using the bungee straps. I am afraid of cutting slits in the top fabric part and ruining the whole thing. We shall see!