From the Torchwood onwards, Harkness wears period military clothes from the second World War, including braces and an officer's wool greatcoat in every appearance. Costume designer Ray Holman comments that "We always wanted to keep the World War Two hero look for him, so all his outfits have a 1940s flavor. We knew he'd be running around a lot, so I redesigned his RAF Group Captain's greatcoat from "Doctor Who" to make it more fluid, because the real things are very weighty... The rest of Jack's costumes are loosely wartime based, so he has big wartime trousers which are getting more and more styled to suit his figure. There are actually five Captain Jack coats used on the show - one hero version which is used for most scenes, one wetcoat made with a pre-shrunk fabric, a running coat which is slightly shorter so John's heels do not catch when he runs and two stunt coats - which were 'hero coats' back in Series 1."