Suede and leather goods don’t require any special treatment. True -they don’t like water but it doesn’t mean that a few drops of rain will hurt them : )
If you want to ensure any dust and liquids won’t reach them, you can use a special impregnate-spray from time to time. You must also remember that any stains must be removed with a special suede-rubber (not water). If the stain seems serious it’s always the best to contact you local leather goods repair shop.
Also feel free to ask mum at anytime at firstname.lastname@example.org