While you can safely use any of our car washes to lightly clean fabric and vinyl soft tops, Meguiar’s offers dedicated products that work most effectively here. Meguiar’s [G2016EU] Convertible Top Cleaner thoroughly cleans fabric and canvass type soft tops, penetrating the fabric fibers and lifting dirt out, leaving a like-new finish. Follow this up with an application of Convertible Top Weatherproofer which will seal and protect the fabric and provide a resilient water repellent coating.