Depends on your body type (thin, athletic, muffin top, etc), and how your clothes fit.
I assume you're asking because you want to know if it'll work for you before you buy one. Have you tried any other IWB holster in the same position (4 o'clock, for instance) with that same gun?
Best answer we can really give you is that it might hide it really well - it's certainly capable - or it might not. Depends on a few things.