Doc Martens

Ace was fond of wearing Doc Martens boots, (COMIC: Fellow Travellers, The Good Soldier, PROSE: Timewyrm: Apocalypse, Cat's Cradle: Warhead, Heritage, The Time and Tide) and said that London was the best place to buy them. (PROSE: Untitled)

Bernice Summerfield wore Doc Marten boots during her wedding to Jason Kane. (PROSE: Happy Endings)

Behind the scenes
The brand was misspelled "Doc Martin" in The Time and Tide.