Peacoat
From Tardis Wiki, the free Doctor Who reference
A peacoat was an item of clothing famous for use by the US Navy and the Kriegsmarine during the Second World War.
The Eighth Doctor wore a double breast peacoat of navy leather with anchor symbols on its gold buttons with an alabaster t-shirt. (AUDIO: Fugitives, etc)
The Ninth Doctor wore a double breast peacoat of black leather (TV: Rose, The End of the World, Aliens of London|World War Three, Dalek, etc.) right up to his death. (TV: Parting of the Ways)