Interesting... I though she could walk half-naked in Dezoris because, as newman she could handle high and low temperatures without problems. Wren even said that newmen were a human race with stronger vitality for the rough environment. It looks like they still suffer like regular humans...
She also seams to be wearing this:
By the looks of those clothes, they look more like Motabian hunters clothes than a "winter" gear from Zelan or spaceshuttle. If that's true then those hunters clothes were bought by Alys and/or Chaz in Aiedo after leaving Zema or before departing from Motabia.
By the way, Dezorizians usually look like lizards, but this time Raja certainly looks like a Monkey.