Sizing guide
The breeds listed in this section are averages, some dogs may be smaller or larger than average so it's always a good idea to have an actual measurement for reference.
Breed | Weight (lbs) | Neck size | Chest size | Collar size | Harness size |
Bichon Frise | 10-14 | 10-16″ | 16-19" | S | S |
Border Terrier | 11-16 | 11-14″ | 16-19" | S | S |
Cavalier King Charles Spaniel | 13-18 | 10-14″ | 14-20" | S | S |
Chihuahua | 3-7 | 8-14″ | 12-18" | XS/S | XXS/XS |
Chinese Crested | 5-10 | 8-11″ | 12-18" | XS | XXS/XS |
Dachshund, Mini | 9-15 | 8-14″ | 12-14" | XS/S | XXS/XS |
Fox Terrier | 14-18 | 10-16″ | 14-20" | S | S |
Havanese | 7-13 | 8-14″ | 14-20" | XS/S | XXS/XS |
Italian Greyhound | 7-12 | 8-11″ | 15-19" | XS | XS/S |
Jack Russell Terrier | 9-15 | 10-14″ | 14-20" | S | XS/S |
King Charles Cavalier | 13-18 | 10-14″ | 14-20" | S | XS/S |
Maltese | 6-9 | 10-14″ | 12-18" | S | XXS/XS |
Maltipoo | 5-20 | 8-14" | 12-14" | XS/S | XXS/XS |
Papillon | 8-11 | 8-12″ | 12-14" | XS/S | XXS/XS |
Pekingese | 8-10 | 12-16″ | 14-20" | S | XS/S |
Pinscher, Mini | 8-12 | 8-11″ | 15-18" | XS | XS/S |
Pomeranian | 9-13 | 10-14″ | 12-14" | S | XXS/XS |
Poodle, Toy | 12-17 | 8-14″ | 15-18" | XS/S | XS |
Schipperke | 11-18 | 10-14″ | 12-14" | S | XXS/XS |
Schnauzer, Mini | 13-15 | 10-16″ | 14-20" | S | XS/S |
Shih Tzu | 12-16 | 10-14″ | 14-20" | S | S |
Silky Terrier | 8-10 | 10-14″ | 16-19" | S | XS |
Yorkshire Terrier (Yorkie) | 6-9 | 6-12″ | 13-16" | XS/S | XXS/XS |