The Tosa varies considerably in size, with the Japanese-bred dogs tending to be about half the size of those bred outside the country. The Japanese breed generally weighs between 36 and 61 kilograms (80 and 135 lb), while the non-Japanese breeders have focused on dogs that weigh from 60 to 90 kg (130 to 200 lb) and stand 62 to 82 cm (24 to 32 in) at the withers. [1] The coat is characterized by its short and smooth appearance and is often red, brindle or fawn, but occasionally it can be a dull black. Maintenance of the coat is usually minimal. Dogs can occasionally tip the scale at 91 kilograms (200 lb). In Japan they are considered the equivalent of Sumo wrestlers, and are even depicted in wrestling accoutrement.