Baze Malbus in his Guardian of the Whills uniform. I half also want to give him a really long form covering jacket as I half think despite his penchant for blasters, he’s also fairly bookish and covers up as much as possible in a sort of bookworm student sort of way.
He bulks up during weaponsmith training- though he was pretty big beforehand?
Things he has minor rebellions about where the masters find he’s just as muleish as Chirrut- Chirrut, blasters and his hair. Not EVERY alien has hair, so why all the humans have to shave theirs feels an arbitrary rule.