Guard hairs: coarse, long, thick hairs that come to a fine tip; insulate the body and aid the sense of touch

Awn hairs: thinner hairs within the primary coat; also help insulate and protect the body

Secondary hairs: the thinnest and most numerous hairs; make up the downy undercoat that is important for temperature control

Whiskers: long, wiry, sensory hairs attached to the face