The most obvious feature of the Feathertail Glider, however, is the tail that gives it its name: it is about the same length as the combined head/body, quite thin, moderately prehensile, and almost hairless except for the two very obvious rows of long, stiff hairs on either side. The tail, when held straight, looks rather like a double-sided comb. It is used to grip twigs and small branches, and to control gliding flight: steering and then braking.
The coat is a uniform mid-grey, with dark patches around the eyes and often a white patch behind the ears. The underside is lighter; the ears are moderately large and rounded.