Concave Convex Hood

This hood is made out of a double layer of fabric. The outside layer constitutes the main part of the hood that is always exposed. The inside layer transitions between being concave and convex depending on the weather, that is whether it is being worn or not. When not being worn the concave inner layer becomes convex inflating the hood like a balloon, and taking the appearance of a face. When worn the face is pressed into the back of the hood, and the wearer's own face takes its place.