You are a cybernetic organism: Living tissue over a metal endoskeleton... Too bad that living tissue is infected by a zombie virus.
~ Official Battle Bears Gold description
The Zombie skin, as its name implies, is the zombie variation of Oliver. It features typical aspects of the stereotypical zombie, which decaying flesh, visisble muscle tissue, missing features (e.g. the eye, which only the socket remaining) and somewhat distorted features. As pointed out in the skin's in-game description, the rotting or decaying flesh visible is only a small portion over a metal endoskeleton. As a result, small parts of metal can be seen through the flesh.