Spring-Loaded
Member
Because that's the whole point of the zero suit?
Not only does this redesign look like it could fit inside most renditions of the Chozo armor (particularly in art from the earlier games and the Prime series), but it also looks like it has gear that could be stripped away if need be. If she's running around in the Zero Suit, it only makes sense for there to be at least some armor and a holster for her stun gun. If the point of the Zero Suit is to fit inside the Chozo armor, then this is fine.
Is every time we see ZSS when she's inside her ship, or at home alone in her apartment? The one time I remember ZSS being playable was when she was caught unawares in Zero Mission. Who's to say she wouldn't have contingency gear for the Zero Suit?