A new saddle should be treated with brooks proofide leather dressing to help assist the 39breaking in39 process proofide keeps the leather supple as it is specially formulated from natural ingredients to condition preserve and shower proof your saddle proofide is the only substance that should be used to care for your brooks leather saddle apply a little proofide to the finished side of the leather allow the proofide to permeate until dry and then polish off proofide should be used s