Hello Gary,
The target that they used in Germany called "mesh" it is an open fabric cloth (kind of pvc) that be used for billboards.
The outer diameter of the target is 10 meter, every colour circle in the target is 1 meter.
"mesh fabric nylon"

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We have a cheaper target, it calls "anti worteldoek" and we make it by ouwerselfs, also the "blokken" for marking the landingspot of the jumper. These are made of rubber they were used under tiles for drainage on flat roofs. I will to make a few pictures of ouwer target so you can see how we made it.







In the film you see a blue rope started in the middle of the target to the edge, that is the wind direction. We must landing against the wind with the canopy, and the feet first if you don't landing with the feet first and don't against the wind you have a pointpenalty.
If you or anyone have more questions about the target please ask for answers.
Greetings