The bontebok is a tall, medium-sized antelope. They typically stand high at the shoulder and measure along the head and body. The tail can range from . Body mass can vary from . Males are slightly larger and noticeably heavier than females.Burnie, D. and Wilson, D.E. (eds.), Animal: The Definitive Visual Guide to the World's Wildlife. DK Adult (2005), The bontebok is a chocolate brown colour, with a white underside and a white stripe from the forehead to the tip of the nose, although there is a brown stripe across the white near the eyes in most blesbok. The bontebok also has a distinctive white patch around its tail (hence the Latin name), while this patch is light brown/tan in the blesbok. The horns of the bontebok are lyre-shaped and clearly ringed. They are found in both sexes and can reach a length of half a metre.
