Size Chart

Size	Neck	Chest/Girth
Size 0	8″ to 10″	12″ to 15″
Size 1	9″ to 13″	15″ to 18″
Size 2	10-1/2″ to 15″	18″ to 22″
Size 3	12″ to 17″	20″ to 24″
Size 4	14″ to 20″	24″ to 28″
Size 5	16″ to 22″	27″ to 32″