Continuity mistake: Mark Antony walks in the site where Cleopatra's tomb is being built. He wears a soldier's uniform and she a red gown, purple robe and a short wig. She walks five steps forward and suddenly they're in a completely different place: both in her bedroom, she wearing now a dreadlock wig, white dress and transparent robe, while he is resting on a couch dressed in red civilian clothes. She walks offscreen and a shot later she has yet another wig, another dress, different belt and black robe.
Revealing mistake: During the naval battle, when the round catapult projectiles fall in the water, they float, revealing themselves to be lightweight props.
Continuity mistake: When Cleopatra lies dead, the position of her hands and the cane she holds change three times.
Continuity mistake: After Cleopatra is unrolled out of the rug, her sandals swap to high-heeled shoes.
Answer: The people of higher rank would usually have more or better armor so in his case that would probably be extra armor for his legs and arms.