White sneakers can start to look dirty very early on if they aren't cleaned properly. Not only do they stain more quickly, but the whiteness can start to look gray. Since white sneakers need to be cleaned on a regular basis, it's best to use cleaning methods that aren't expensive.
Take the laces out of the sneakers.
Pour warm water into a bowl.
Add 1 tsp. of dish washing liquid. Mix the two ingredients together.
Dip a toothbrush into the mixture.
Scrub tough stains with the toothbrush until all of the stains are gone. Rinse with clear water.
Lay sneakers outside on a flat surface to dry. Make sure the sneakers are upright with the soles facing downward.