Armor on the female body is common in fashion depictions of the future. Representations of a shield to protect a woman from the attacks of the enemies. An independent woman of the future has the capability to be her own superheroin.
Men (at least the highly fashionable ones) wore many accessories in the 1920s. Notice the different types of hats (here we see fedoras, straw boaters, and Newsboy hats). Canes were popular accessories as well as small rings, tie pins, and collar pins.