And each had a "reddish brown bearskin coat, with flat metal buttons." Bearskin was not actually hide, but rather a shaggy, coarse wool comparable to fearnaught and dreadnaught cloths. Like these materials, it was favored by servants and sailors as a cheap and warm outer garment textile. John Lewis also had a "flowered damask jacket," almost certainly of worsted wool rather than silk. While "flowered" sometime connotes a small printed design, in this case it more likely refers to the woven pattern of the damask.
It might have been particularly hard for Cole and Lewis to avoid notice dressed in this fashion. Even if Wright was simply using the same material and tailor for his servants' clothes, the result was to produce two identical and unmistakable wardrobes. Cole and Lewis were not dressed in livery, but they would have been recognizable as bound men nonetheless.