Some suggestions will make the shooes look better briefly. But then the shoes no longer protect and support your feet. If looks are important at the risk of damaging the shoes or your feet, you don’t need an answer here. Clean shoes with anything and everything that mkes them look good then buy another pair.

Never place shoes in a conventional washing machine. The thorough, prolonged soaking and un-natural movement break down the adhesives holding the shoes together.

Shoes are designed to take the stress of walking, running, or basketball, for example. Shoes are not designed to be flipped, pulled, turned, twisted and dragged upside down and sideways violently underwater nor spun flat at high speeds.

Oven cleaner, and drain cleaner, and toilet bowl cleaner, are caustic and weaken synthetics or dissolve fibers. The shoes are clean on the outside and disintegrate on the inside. Residue can burn your feet.

Bleach burns and destroys fabric. Ever seen a nice white cotton cotton that looks clean but has holes like swiss cheese? That’s what happens to the soft material inside your athletic shoes when using bleach. Look nice on the outside. Worthless and weak for supporting your foot.

Remove dry dirt, then mild soap and water in tiny amounts using a toothbrush and then thoroughly rinsing is best. Rinse by wetting the material and blot with a towel. Repeat several times. The single best thing you can do is wet, blot, and rinse thoroughly when cleaning. The dryer the shoes remain, the less soap and chemicals, the better.

For stains use 1 tablespoon hydrogen peroxide (from the drugstore) 1 tablespoon baking soda and 1 tablespoon hot water all mixed together. Scrub with a toothbrush. Rinsing as above is very important.

White Tootpaste can be used to mask stains in difficult to clean white shoes. Scrub with small amount of paste, no water, let dry, brush dried residue loose with a dry brush.

Baby wipes are good on the soles only. The moisturizing residue on fabric or leather attracts dirt. You get a one time benefit then you’ve made matters worse.

HTH.