Gaiters
From Tardis Wiki, the free Doctor Who reference
Gaiters were garments round the lower part of the legs used to prevent mud, sand, snow, liquids, and rubble from going inside footwear such as boots and shoes.[source needed] They were longer versions of spats.[source needed]
The Doctor wore gaiters during his eighth (TV: The Night of the Doctor, etc.) and War incarnations. (TV: The Day of the Doctor, etc)