Give the raincoat its hood back.

Because who in the world designs a raincoat to not have a hood.

Getting drench depends on wearing an item with rainproof, and head + torso warmth. Hence the hood will actually prevent us from getting drenched since it increases head warmth if we're below threshold.

A coat that doesn't have a hood is called a *waterproof jacket* and should be added instead of gimping the raincoat.