In the first panel of Page 22, you actually see her with no headgear at all. She's changing headgear, because the Hat was either Messaging or Dance-Fighting costume, whereas the helmet is probably more defensive or intended for standard combat. Commanders, especially Wanda and Jillian, change Raiment and Headgear all the time to get the best bonuses for the situation at hand.
"I'm afraid I don't understand. And also afraid that I do."
Two guys with basically the same name in a discussion about a character getting cloned.
There's gotta be a good joke in here somewhere.