I'm trying to enjoy the gooner bait, but the freakin character design is peak. Just look at the stitches on the hat and the big cut out. I'm curious how those belts suspend her clothing on the backside.
I think her pants do not cover her back, but the hip-belts look like they can un-hook in the front, so I think:
She pulls up her pants, attaches them to her neck and then closes the hip belts. A little bit like the back of a Hakama.