The real name of the clothing is the following but I used it last Halloween for the Nicole Kidman AMC Ad.
CHARCOAL GREY PINSTRIPE OVERSIZED DAD BLAZER - Size 0CHARCOAL GREY PINSTRIPE WOVEN HIGH WAISTED CIGARETTE PANTS - Size 4
Would fit well on someone who wears an XS though you'll need a belt for the pants. Only worn 3 times over Halloween.