Only suede soles are suitable for bushing. There are some styles with a leather sole for street use, which can not be brushed.
Please read also our information about dance shoes soles to get more details about suede leather soles.
To avoid injuries, we reccomend, to take the dance shoes off and hold them gripply in your hands, while brushing them. The sole can be scratched strongly with pressure and some crisscross moves. We advise to use a trash can while brushing, as some durt is flying down.
The condition of the suede material is different dependent of the manufacturer, though all suede soles are qualified to be brushed. They cannot be damaged by a normal use oft he shoe brush.