If history repeats itself, the SOX will probably wear the gray road jerseys after losing last night in the black alternates.
As posted earlier, perhaps the gray pants with the single black piping will be used only with the black alternate jersey and that the road grays haven't changed.
I remember when the SOX had the home vest alternates. They did not wear them as much as the regular jerseys, but the home pinstripe pants were worn with all three home jerseys. By August and September, you could see a pretty drastic color brightness difference between the pants and the vest jerseys where the vests looked a lot whiter/cleaner. I remember Hawk and DJ talking about it during one of the games.