Use vinegar to kill mould on and inside of shoes. Not only will the vinegar effectively kill the mould, but it will absorb odours and brighten the look of the shoe. Vinegar is a natural cleaning product. Use a brush to remove the dead mould from the shoe. Shoes get mouldy when left wet in dark, damp places. Putting the shoes in the washing machine during a hot cycle will kill the surface mould, but may not be able to kill mould in hard-to-reach places.
Pour vinegar into a bowl.
Dip the toothbrush in the vinegar to soak the bristles.
Scrub the mould with the vinegar.
Wipe the mould-free shoe off with a wet cloth or rag.
Use the toothbrush on the inside of the shoe. Pour a small amount of vinegar inside the shoe to allow it to soak in and kill mould underneath the cushion.
Let it air-dry in a dry area. The vinegar smell disappears as it dries.