SIZE WEIGHT GIRTH
TINY 3-5 lbs. 9-14”
XX-SMALL 4-9 lbs. 13-16”
X-SMALL 8-14 lbs. 16-18”
SMALL 12-20 lbs. 17-23”
MEDIUM 18-30 lbs. 19-24”
LARGE 28-42 lbs. 20-26” X-LARGE 40-60 lbs. 22-29” XX-LARGE 58-80 lbs. 24-32”