Presuming that it's flocked
DO NOT USE ANY SOLVENTS. This includes some pre-sprays that have a high solvent content.
But, there are the occasional flocked suites which MUST be Dry Cleaned only, but as far as I'm aware, these are rare and usually the more modern polyester fabrics, not nylon.
In some body contact areas, because of the oily nature of the soiling, pile can be lost upon cleaning.
Be aware of delamination in wear areas.
If the fabric is not flocked, ignore all of the above.
Open the vacuum waste gate on your tool for better drying, and towel dry to improve drying, but not aggresively.
Safe and happy cleaning

Ken