OK, the jacket is an Adidas Colorado series, try ebay.com or picclick.com.
Don't use your LOCAL ebay (like ebay.de or ebay.us).
The Shorts are of the SPO series.
Both are not nylon, but polyester.
But the modern polyester is not as bold amd ugly as it was in the 90s or 00s. They are as slick and shiny as nylon, but more simplier to process.
I don't feel and see any difference today.
In the 2010s I paid roundabout 30 euros for the shorts and 20 for the jacket.
Now they seem to be paid in gold.
Try your local thrift shops, there I found my last treasure:
A very shiny and LOUD swishy black snowsuit from Adidas.
It looks like a tracksuit but it is filled with an insulation layer.
I paid 40 bucks for pants and jacket.