I myself would probably spray it with Krylon® Fusion as I find it works best on plastics surfaces. Not sure whether Fusion comes in a non spray type product though.
If you can't find Fusion that you can brush and roll use a top quality primer coat instead. Your primer coat needs to be recomended for the the kind of coating that is already on your wardrobe prior to painting (vinyl).
Once primed (sanded and re-primed if needed) almost any kind of paint can then be applied.
A dealer in your area, one that sells only painting and decorating products, would be the best place to go for advice on your specific project.
Also, be sure to follow all product label instructions no matter what coating you decide to use.
HERE'S KRYLONS FUSIONS SALES PITCH
Krylon® Fusion is the world's first no-prep superbond paint for plastic. This revolutionary product makes life simple. With no sanding or priming Fusion dries in 15 minutes or less.
Krylon® Fusion bonds easily to plastic, PVC, hard vinyl, resin and more creating a durable, professional-looking finish that won't chip, peel or fade.
