Zack and Zoey US2100 Features: -Dog t-shirt. -Available in several colors. -Ribbed knit cuffs and two button collar for a tailored yet sporty look. -A tailored yet sporty look for preppy pups. -Two button collar adds authentic detail. -Machine washable for easy care. -Available in several sizes. Measure Dog to Find the Perfect Fit Measurement Instructions: - Length (L) = Measurement from Neck to Tail . -Girth/Chest (G) = Measurement around the broadest part of the chest . -Neck (N) = Measurement around the Neck. Recommended Sizing by Breed: -X-Small: Cat, Yorkshire Terrier, Chihuahua, Maltese, Italian Greyhound. -Small: Beagle, Boston Terrier, Cocker Spaniel, Pug. -Medium: Basset Hound, Bulldog, Keeshond, Norwegian Elkhound, Dalmatian. -Large: Afghan, Doberman, German Shepherd, Irish Setter, Rottweiler, Collie. -X-Large: Great Dane, Great Pyrenees, Greyhound, Mastiff, Saint Bernard.