Peter Capaldi recently finished his first full season as the Doctor. He’s the Twelfth incarnation of the Doctor in the BBC series Doctor Who. The Doctor gets a new signature outfit or look every time he regenerates, and Capaldi’s costume is understated and classy. He’s worn a handful of different outfits, but the look that jumps to mind is the black coat with a deep red lining. It’s paired with a black vest and pants and a white button down shirt.
Replica Props Forum (RPF) user Tommyd987 assembled that costume as well as another couple of shirts seen in episodes from the current season. He purchased many of the outfit components and detailed his finds:
…sporting the black lake loafer boots (alt purchased from Ebay £30) My tapered Slim black trousers (River Island £30) my white shirt and black cardigan (Next £20) and my lovely crombie coat (Ebay £100) and my black belt from Debenhams (£18) Then down to the more subtle detail like The Doctor’s gold ring, the original prop is an add on to Peter Capaldi’s wedding ring including a green diamond in the centre, consequently what i wear is two thin golden rings linking to look like one, and in the process looking like Capaldi’s!
He made the waistcoat from the Crombie one mentioned; he just modified it down to the last detail – including making the correct buttons.
Get more information about the costume at The RPF.