These data are the WRB soil data for the whole area covered by the Soil Atlas of the Northern Circumpolar Region. It comes as a single shapefile.
European Commission, Joint Research Centre (2026): WRB Data for the Soil Atlas of the Northern Circumpolar Region. [Dataset] doi: 10.2905/JRC.HM3S8E8 PID: http://data.europa.eu/89h/jrc-esdac-110