XS: Fits necks 9”–13” – Design for toy breeds- Ideal for Yorkies, Shih Tzus, Chihuahuas, Bichons, and cats.
S: Fits necks 13”–16” – Design for Small breeds-Great for Pugs, French Bulldogs,Jack Russells, Beagles, Cavaliers and small breeds
M: Fits necks 16”–20” – Design for medium breeds Best for Bulldogs, Corgis, Shiba Inus, Cocker Spaniels and Australian Shepherds.
L: Fits necks 20”–23” – Design for large breeds. Perfect for Golden Retrievers, Goldendoodles, German Shepherds, and Labradors.
XL: Fits necks 23”–25” – Designed for larger breeds like Berbers, Great Danes, Mountain Dogs, Rottweilers, and Bullmastiffs