Does the kybun shoe need to be waterproofed?

To ensure your continued enjoyment of your kybun shoe, we recommend regular waterproofing and cleaning. This better protects the upper material from dirt and water. Before first using the kybun shoe, you should apply a suitable waterproofing spray for synthetic leather.
Important: Do not waterproof a kybun shoe that has patent leather upper material.

The sole is waterproof from the outside and further waterproofing is not necessary.