Pet Halloween & Costume Sizing Guide

Pet Halloween & Costume Sizing Guide

Finding the right costume fit keeps your pet comfortable and looking their best. Most pet costumes are sized by back length and chest girth — measure both for the best result.

How to Measure Your Pet

  • Back Length: Measure from the base of the neck to the base of the tail along the backbone.
  • Chest Girth: Measure around the widest part of the chest, right behind the front legs.

Pet Costume Sizing Chart

Size Back Length Chest Girth Common Breeds
XS 8" – 10" 10" – 13" Chihuahua, Yorkshire Terrier, Teacup breeds
S 10" – 12" 13" – 16" Pomeranian, Toy Poodle, Maltese
M 12" – 15" 16" – 19" Pug, Shih Tzu, French Bulldog, Boston Terrier
L 15" – 18" 19" – 22" Beagle, Cocker Spaniel, Miniature Schnauzer
XL 18" – 22" 22" – 26" Boxer, Collie, Medium Labrador
2XL 22" – 26" 26" – 32" Golden Retriever, Labrador, German Shepherd

Tip: Prioritize chest girth over back length for pullover costumes. Always supervise your pet while in costume.