In short: lightly mouldy shoes can usually be saved at home if you treat them to suit the material; mould deep in suede or the lining is best sent to a shop.
Shoes left in the cabinet through a rainy season come out speckled with white or green spots and a musty smell. That is mould. The good news is that most cases can be saved. The bad news is that the longer you wait, the smaller the chance, and some popular online fixes ruin shoes faster than the mould itself.
This article helps you work out how bad your pair is, how much you can fix yourself, and when to take it to a shop. For an overview of every shoe condition we handle, see our shoe cleaning service.
Why shoes go mouldy
Mould needs three things: moisture, darkness and something to feed on. Shoes have all three. Sweat and dirt in the insole are the food, a closed box is the darkness, and Saigon air in the rainy season is always humid.
The three most common situations:
- Storing shoes before they are fully dry after walking in the rain or washing them.
- Keeping them in a cardboard box or plastic bag for months without opening it.
- A shoe cabinet pushed against the wall or kept in the bathroom, where it is humid all year round.
How bad is your pair
Before doing anything, look closely to see which kind you are dealing with. The treatment is completely different.
| Severity | Signs | Chance of saving |
|---|---|---|
| Surface mould | A white powdery layer that wipes off, with the surface underneath still its original colour | Very high, you can fix it yourself |
| Clinging mould | Green, grey or black spots that only fade when wiped and still leave a mark | High if done properly |
| Deep mould | Black stains soaked into the fabric or leather grain, leather gone stiff, some areas peeling | Limited, usually leaves a mark |
To be blunt, so your expectations are right: with deep mould, the goal is to kill all the mould and fade the stain, not to erase it completely. The fabric fibres and leather grain have been stained from within.
Treating light mould at home
If your pair has surface mould or light clinging mould, follow these steps in order:
- Take the shoes outside before brushing. Brushing indoors sends mould spores everywhere and onto other things. Wear a mask.
- Dry-brush the surface mould with a soft-bristled brush.
- Wipe with white vinegar diluted one to one with water, using a cloth wrung out very well. Vinegar kills the spores without eating into the material like bleach does.
- Leave to dry somewhere airy, in the shade. No harsh sun, no heat drying.
- Take the insoles out and dry them separately, since the insole is usually where the mould is worst.
Always test any solution on a hidden spot first, especially on coloured leather and light-coloured shoes.
Treatment by material
Fabric and canvas shoes
They tolerate water, so they are the easiest. After wiping with vinegar, you can wash them gently with a neutral soap. If black spots remain, the mould has stained the fibres, and that part needs a separate stain removal process.
Smooth leather shoes
Do not soak. Wipe with diluted vinegar, let dry, then always condition the leather again, because the vinegar and the cleaning strip away some of the natural oils in the leather. Skip conditioning and the leather will dry out and crack within a few weeks.
Suede and nubuck
This is the hardest material. The velvety surface absorbs moisture, and water mats the fibres for good. Only dry-brush with a dedicated suede brush and use a damp cloth very gently. If the mould has spread into patches, do not try it yourself; you are likely to leave water marks that are harder to fix than the mould. See also our guide to caring for suede shoes.
Rubber and PU soles
Rubber soles come clean with soap and a brush. PU soles need more care: long-standing mould can make the PU crumble. If it feels soft or spongy when pressed, or shows small cracks, the problem is no longer cleaning but a damaged sole.
What to avoid
- Laundry bleach. It kills mould but yellows fabric, fades leather and makes glue brittle. It creates new damage that cannot be undone.
- Drying in harsh sun to speed things up. Leather shrinks and cracks, and the sole glue weakens.
- Using a hair dryer or leaving them next to the stove. Same reasons, only worse.
- Spraying perfume or deodoriser to mask the smell. The smell goes for a while, but the mould lives on underneath and comes back.
When to bring it to the shop
Send them to a shop if any of these apply:
- Suede or nubuck shoes with patches of mould.
- Black spots remain after wiping with vinegar.
- Luxury shoes or a pair you treasure that you do not want to risk.
- Mould inside the insole and cushioning too, with a smell that stays after days of airing.
At Foxpro, light to moderate mould is covered by our deep cleaning package at 150,000d: killing the mould, cleaning, conditioning and reshaping. Heavily mouldy suede needs a dedicated process, restoring mouldy suede shoes, 500,000d to 750,000d depending on severity, including fungicide treatment, brushing to lift the nap and restoring the velvety surface. We give the final price after seeing the shoes, and only start once you agree.
Keeping mould from coming back
- Only store shoes once they are completely dry, insoles included.
- Put a desiccant pack in the box and replace it every few months.
- Open the box now and then to let the shoes breathe, especially in the rainy season.
- Wipe each pair before putting it away, so dirt does not build up and feed the mould.
Heavy mould, or suede shoes?
Take two photos, one of the whole pair and one close-up of the mould, and attach them when you book. Our technician will tell you upfront how far it can be saved and what it costs. If it is not worth doing, we will say so.
Frequently asked questions
Will the mould come back after treatment?
Yes, if the storage spot is still damp and closed. After cleaning, let the shoes dry fully, keep them somewhere airy with a moisture absorber, and air them now and then.
Can mould on suede be saved?
Surface mould, yes. Mould that has gone into the nap needs the surface restored, an item priced 500,000d – 750,000d, and a faint mark may remain.
What does mould treatment cost at the shop?
Light mould is priced as deep cleaning at 150,000d. Heavy mould on suede is priced as its own restoration item. See shoe repair pricing.
Can I kill mould by washing in hot water?
Better not. Hot water loosens the sole adhesive and shrinks the lining, while spores stay in the foam. It takes the right solution for the material, then full drying.