Thomson’s gazelles are 51 to 67 cm (20 to 26 in) tall and weigh 13–24 kg (29-40 lb) (females), 17-29 kg (males). They have light brown coats with white underparts and a distinctive black stripe. Their horns are long and pointed with slight curvature. The white patch on their rump extends to underneath the tail but no further. A Thomson’s gazelle maximum running speeds is up to 65 km/h (40 mph).