Leather motorcycle jackets should generally not be washed in a washing machine. It is best to clean them with a damp cloth and then apply leather grease.
Textile jackets can usually be machine-washed on the gentle cycle with the addition of mild detergent. More detailed care instructions can be found on the jacket label. It is important that you remove the protectors before putting the jacket in the machine. After about every third wash, you should impregnate the material so that it retains its water-repellent properties.