His 'What?!' sounds somewhat familiar, but Yuffie doesn't bother trying to figure it out. She's glad she isn't weighed down by all the equipment and gear he seems to have, and it's hard to not prance ahead to show off a little.

"Shinra outfits are stupid!" She repeats this as she leaps over a pile of rumble, giving him a sidelong glance as she smirks. "Seriously, how can you see all around you with that helmet on?"

Freedom of movement is at the top of Yuffie's "Requirements" list. A little bit below Materia and arguments with her father.