The coat is protection carried — the layer between self and climate, armor made soft. To lack a coat in the cold is exposure to harsh conditions unequipped; the cloak conceals as it protects; giving your coat is protection sacrificed for another.
Positive Resonance
Protection, warmth carried, the layer that lets you weather conditions
Shadow Aspect
Exposed to the climate, hiding within layers, armor mistaken for skin
Nuances
No coat in winter: unprotected in harsh conditions
Heavy coat in summer: protection past its need
Giving your coat: protection sacrificed for another