I've never owned a Dooney & Bourke handbag, but my friend recently purchased one. It's her very first *designer* handbag. I expected her to treat it with kidd gloves, but not everyone is as crazy as me about their handbags. Anyway, this question is posted for her. Her satchel is a light butter yellow signature fabric with natural leather trim/handles. I recommended Apple products for the leather parts since that is what I use on my bags. What is the best way to clean the fabric?