When trying to decide between two sizes, choose the larger size for a better fit.

Pet Costumes

SizeLengthChestNeckWeight
SM 13-16" 15-18" 11.5-13" 11-17 lbs
MD 16-19.5" 18-22.5" 13-15.5" 18-28 lbs
LG 19.5-25" 23-26" 15.5-18" 29-44 lbs
XL 25-34" 26.5-32" 18-21" 45-75 lbs