Combat boots
Combat boots were boots designed to be worn by soldiers.
The War Doctor wore combat boots in black or brown; (COMIC: The Clockwise War, The Whole Thing's Bananas, Four Doctors; PROSE: Engines of War; TV: The Name of the Doctor) up to his death after the 1562/2013 Zygon Invasion of Earth and the Fall of Gallifrey. (TV: The Day of the Doctor)
Sarah Jane Smith gained combat boots from Skaro during the Dalek's origins by the power of Davros; (TV: Genesis of the Daleks [+]) which she also wore when befriending the sentient robot Max and helping to defeat Barris Kambril, (PROSE: A Device of Death) and also wore it when helping stop stop Nomad Cybermen during their Attack on Voga after the Great Cyber War. (TV: Revenge of the Cybermen [+])
The War Doctor's Auton copy wore combat boots during the Battle of the Althos System. (PROSE: Decoy)
Galloway mistakes footsteps for noises made by a rodent, to which Quartermaster Sergeant Stien sceptically points out the fact they were made by combat boots. (TV: Resurrection of the Daleks)