There are two components to successfully washing your boat or RV. First you need a high lubricity boat and RV shampoo. Secondly, you need a soft, nonabrasive wash mitt or sponge. On this page, we've compiled the best of the best. Choose from natural sheepskin or a sea sponge, or go with a technologically advanced microfiber mitt. No matter what you use, always rinse the wash tool frequently during the wash process to release loose dirt. A clean mitt reduces the chance of scratching while you wash your boat or RV.