Viking Knapper shoes

Size 22 Viking boots. Bought used (previously worn by one child), but unfortunately the child's foot grew faster than we expected for the season. Condition is very good, except for:
• a stain on one insole;
• the upper layer of the right toe is slightly scuffed (looks worse in pictures than in reality, not so large and deep).
Easy, comfortable to put on, breathable. Moisture-resistant.
Washable at 30°C in the washing machine. I have not washed them myself.