First of all read carefully the information about yours shoes, usually it is possible to find it in attached materials in the package or on the tongue of your shoes. Common recommendation is do not put your shoes to a washing machine, because it can compromise the materials of the shoe, just use a soft cloth and warm water (could be added not aggressive cleaning agents), don’t forget to rinse your shoes and give them enough time to dry. For better effect put inside some paper and keep it away from drier.