A large, rodent-like mammal with unmistakable long, erect ears, large hind feet, and short tail. Yellow-brown to buff-gray above, grayer in Sinai, paler along flanks and white below. Coat dense and soft. Legs and feet as upper parts. Inside leg white. Hind feet greatly enlarged, generally over 10cm long. Sole with long hair. Head with blunt snout. Throat buff. Eyes prominent and surrounded by whitish eye ring. Ears very large and elongated, pale brown sometimes tipped with black. Inside paler. Tail short, blackish above, white below, held erect when run­ning exposing white under­side to the observer. When alert, sits upright with ears erect. Powerful runner.