errrrmmmm yeah .... darker shade of shiny grey outside ....
lighter one inside .....
the tailor said this looks good leh ..... 
Can I know what kind of material and the type of shine
Seriously I think for shiny stuff, unless you have a bulit like
those skinny Korean stars, just avoid it. If it's just the vest
inside is ok, but if it's outside too ........ let's just say shiny
clothes aren't what you call flattering on the figure