Jack is a young man with coiffed blond hair and wears a Class Zero uniform that consists of a black jacket, white pants, and a medium-sized red cape. He also wears a belt around his waist, allowing him to perform the act of sheathing and unsheathing his katana. He seems to always have a smile and is able to make wise-cracks easily. In dangerous surroundings and near-death experiences, he encourages his peers to take it easy. - Final Fantasy Wikia