Pelage
1. The coat of a mammal, consisting of hair, fur, or wool, as distinct from bare skin.
2. Something that resembles the coat of a mammal
Pelage is the mammalian equivalent of “plumage” for birds.

The word is not recorded by the OED until around 1830, whereas it is derived from the Old French peil, pel, or poil meaning hair or down.
Compare with French peler, to deprive of hair — and hence depilation (which is a much older arrival in English).