Kusuriya (kk7hut)
ProScience 🇪🇺Where are you located?
ETA: Continent suffices. I would have one shop recommendation in Europe.
@proscience the greater Seattle Washington USA area
Sorry, that's outside my area of expertise.
Maybe ask in the American sewing forum PatternReview?
https://sewing.patternreview.com/cgi-bin/sewingclasses/board.pl?today=1&misc=1
Registration is free, and there are plenty of Americans from all over the US who will be happy to chime in. Focus of the forum is garment sewing but IIRC I saw also people sewing raingear.
HTH
