I like that Collingwood keep their guernseys basic and traditional, I think there's something special about a club wearing the same design or a variation on it for as much of their history as possible. For that reason I really wasn't a fan of some of the adidas takes on their guernsey, first changing to white on black and then doing all the weird tapering stripes and curved lines later on. The last few years' efforts under ISC and Nike have been excellent.