Rare vintage Kjendis 70s red rain boots

These truly vintage boots were gifted to me by a dear older friend who ordered them special (and paid a pretty penny!) from a catalogue from either Holland or Norway - I can't remember which. They are in great condition for being over 40 years old. The boots come with sheepskin? inserts that are super comfortable and have a few fuzzy pills rather than real wear on them. They seem to fit true to size (I'm a size larger). I'm assuming Kjendis is the brand bc it's stamped on the inside.