GENERAL APPEARANCE
Shoulder height: approx. 28-38cm (1 1”-15”).
Colour: Preferably brindle with white on designated parts of the body.
Black and white is allowable. 
Coat: Short, smooth, lustrous and fine in texture.
Gait: Sure footed, easy and straight gaited.
The Boston is a comparatively compact dog for its size and presents a picture of determination. The square skull should be broad enough for plenty of width between the large, dark round widely set eyes. The broad muzzle is very short. The erect ears must be fine and pointed. The chest is broad resulting in the forelegs being set wide apart. The tail is set on lower than the topline and is very short - it may be straight or screw in shape.
CHARACTERISTICS AND CARE
Bostons are lively little dogs and having a style of high order, they stand out in the show ring. In the family circle, their intelligence is most apparent and they make excellent pets for children who can appreciate their clown like antics. Having such broad heads and comparatively narrower loins results in
the puppies sometimes needing to be born by Caesarean section. Their coats require only minimal care, but being so short means they should not be exposed to excessive cold weather. 
HISTORY 
This breed was evolved from a cross in America between Bulldogs and Bull Terriers and once were known as the American Bull Terrier. In order to separate them from the already established Bull Terrier, their title name was changed to Boston Terrier in honour of the city where their breed type was first developed. While the progenitors of this breed weighed as much as 27kg (60lb), today one sees them around 6.8kg with a limit of up to l1.4kg (15lb).