Spats were footwear accessories for outdoor wear, covering the instep and the ankle.
The Sixth Doctor wore royal orange spats. (TV: The Twin Dilemma-Time and the Rani). His successor, the Seventh Doctor, wore them before switching outfits. (TV: Time and the Rani)
The Half-Face Man wore beige leather spats during the 1890s. (TV: Deep Breath)