Identify the upper from maker information, not surface appearance
All-white finishes hide material differences, so start with the tongue tag or the brand's care page rather than a guess. Smooth, pebbled or slightly shiny surfaces are usually leather or a coated synthetic; woven cotton that darkens evenly when damp is canvas; stretchy, ribbed, sock-like uppers are engineered knit. Treating a knit like canvas — or a coated synthetic like canvas — is how uppers get wrecked mid-clean, so name the material before any liquid is involved.
Check: You can name the upper material and any coating, and a tag or the brand's care page confirms it.
Remove laces and insoles — only where they are designed to come out
If the laces and insoles lift out easily, remove them, because both trap the grime that keeps a cleaned shoe looking tired and neither dries well inside. Nike's guide hand-washes laces in the cleaning solution and air-dries insoles completely before they go back, replacing them if odour persists. Fixed or glued-in components stay in place and get only a surface wipe — pulling at them risks tearing adhesives the maker never intended you to disturb.
Check: Every removable part is out drying separately, and nothing fixed has been forced loose.
Brush off loose dirt before any liquid
Dry brushing first is Nike's opening step for good reason: grit that turns to mud in water grinds into fibres and stitching. Work a dry, soft-bristled brush over the outsole, midsole and upper, getting into seams and the outsole grooves where grit collects. This alone often removes the grey film that reads as 'dirty', and it lets the wet clean focus on actual stains.
Check: A dry pass over the shoe picks up no further grit, and seams and outsole grooves are clear.
Spot-test, clean the matched way, then remove all residue
Test the solution on a hidden area first and stop at the first sign of colour lift, darkening or fuzzing — that is the method being wrong, not you being gentle enough. Clean with the matched method from the table above: light circles and low pressure on leather, gentle circular brushing on canvas, dabbing along the knit on mesh. Then wipe the whole shoe with a clean damp cloth, because soap residue dries as dull patches and attracts the next layer of dirt.
Check: The hidden-area test showed no reaction, no visible grime remains, and a final damp wipe comes away clean.
Treat the midsole as a separate job
The foam or rubber midsole is a different material with different limits, so it gets its own pass with its own brush. The maker-approved options are the same mild solution worked along the midsole line, or — for white and light pairs only, per Nike's guide — a baking-soda paste left briefly before a firm but controlled scrub. Keep every paste on the foam: hold the brush angle against the midsole so nothing abrasive crosses onto leather, canvas or knit.
Check: The midsole reads visibly cleaner, with scuffs lifted, and no paste or residue has crossed onto the upper.
Air-dry away from heat, then judge what is left
Stuff the shoes loosely with plain white paper or a towel to hold shape, and let them dry at room temperature in moving air — New Balance allows a full 24 hours before wear. Dryer heat can deform shoes and warp foam, and long direct sun can yellow some synthetics, so neither radiator nor windowsill is the right spot. Once fully dry, distinguish what remains: dirt you missed, or permanent age and oxidation, which may only lighten and is a case for a cobbler or specialist cleaner rather than more scrubbing.
Check: After a full day at room temperature the shoes are dry inside and out, kept their shape, and you can say what any remaining discoloration is.