According to the supplier: Braava 390 T comes with microfiber cloths in the packaging. Some say microfiber is not good for wood floors, some say it’s okay. To be sure, please ask your floorer.
Braava 390 T is working with a pad with a hook-and-loop fastener. You can either use the cloths which come with the product or you can use your own clothes / right clothes for your floor with Braava.