How do you wash running shoes without ruining them?
First, if they got muddy, let the mud dry completely and use a brush with stiff bristles to remove the dried mud. (Don't forget the soles.) Remove the laces. (They can go in a washing machine, but the result is always that my laces are way cleaner than I can get the shoe.) If the insole is removable, take it out and hand wash it separately. Fill a sink with warm water and a squirt of dishwashing liquid detergent. Immerse the shoes and let them sit for three to five minutes. Make a lather of more detergent in your hands and apply it to the shoes' cloth and suede. Use a soft toothbrush to scrub at especially bad areas. Rinse well in cool water. It's going to take a lot of rinsing to get all the detergent out. I mean a *lot*. If it's still making bubbles, you're not done. Reshape the shoes if needed, making sure the toe caps didn't get pressed flat. Lift the tongues to allow air flow to the inside. Set them where they can air dry undisturbed, away from direct sunlight and heating vents. It may take days and days for them to fully dry. When dry, if the suede appears matted, you can restore it with a stiff brush.
Same way I wash all my other clothes (liquid detergent, cold water, hang dry), except no fabric softener on tech fabric.