Something doesn't make sense about the recent un-genderlocking.

[Caro178]

How was his HW outfit unisex? He's the only one who wears it. The initial ARR outfit makes sense since both twins wear it. But the HW outfit is only his.

Unisex as in the outfit itself sold on the cash shop fits both genders. Also, the twins have virtually the same body. I'm not saying any other character wears it, just that Alphinaud and Alisae have very simple, easily adjusted body shapes that are almost identical to begin with. The answer here is probably as easy as: the twins' unique Elezen teen body is easier to work with than something like Lyse's custom red dress (which already looks a bit funky and stretched if your character has larger breasts than it was intended to accommodate.) Even with a lot of tweaking it's probably close to impossible to make it look passable on a Hrothgar or male Roe, for example.