Wolfe carefully examined the clothing, and noticed that not only did it have a basic protective charm woven into it, it also had a tracking spell on it that linked back to the hotel. Whether this was to protect guests or to protect the hotel from thefts was questionable, but someone would definitely notice if they left them in the room, when they weren't expected to have local garb for the event.
"We will wear these. The hotel has a tracker on them, so it's better that we wear them to the event, just to avoid suspicion. Wear the invisible armour that sits tight to the skin and put the clothing over the top.
There will likely be a lot of close contact today, and it would seem odd if we were blocking others from contact with our clothes. We want it to seem like we trust them at least a little bit." Wolfe informed the witches.