Leather jackets must not be washed too often. You must make sure that you do not wash them regularly as it might fade away their colour and affect their quality, too. Therefore, it is not at all advisable to wash your Brown Leather Jacket in the washing machine, but you can dry clean them. If they are dirty, you can try cleaning them with a damp cloth to wash away the dirt. If it is still dirty, then you must clean it with mild detergent and not use bleach.