Sprinkle baking soda inside the shoes and leave overnight. Pour out the baking soda in the morning.
Spray all stains with a stain-removal spray.
Let the spray sit for 10 minutes.
Scrub the stains with an old toothbrush.
Remove the shoelaces and hand wash them with mild dish detergent. Use 1 tsp. of detergent per 1 gallon of warm water. Submerge the shoelaces in the water and let them sit for 10 minutes and then rub the shoelaces between your thumb and first finger, rubbing in a circular motion.
Place the shoes in the washing machine with ½ capful of laundry detergent. Wash on the regular cycle with cold water.
Let the shoe laces and shoes dry on a flat surface. Set up a fan to dry them more quickly.