Size Guide
How to Measure Your Dog
- Neck circumference: Measure around the widest part of your dog’s lower neck. Leave enough space so you can easily slip two fingers between the collar/harness and your dog’s neck.
- Chest circumference: Measure at the widest point of the chest, typically a hand’s width behind the front legs. Go once around, holding the tape measure snug but not tight. Allow two fingers of space to prevent chafing or constriction.
Important Reminders
- Individual Variation: Dogs of the same breed can vary widely and there are no standard collar/harness sizes across brands.
- Measure to Confirm: Use a soft tape measure for the most accurate neck and chest sizes.
- If in Doubt, Size Up: A harness or collar that’s too tight can be uncomfortable or unsafe.
- Breed Charts: While we strongly recommend measuring your pup for the best fit, we’ve added some common breeds to our size charts below for guidance if measuring isn’t possible (e.g., buying a gift).
Dog Collar Sizing
| Size (Strap width) |
Neck circumference |
Example breeds |
|---|---|---|
| S (2.5 cm) |
23 – 30 cm | Chihuahua, Yorkshire Terrier, Maltese, Pomeranian |
| M (2.5 cm) |
30 – 37 cm | Pug, French Bulldog, Boston Terrier, Cavalier King Charles Spaniel |
| L (3.2 cm) |
37 – 46 cm | Cocker Spaniel, Australian Shepherd, Dalmatian, Border Collie |
| XL (3.8 cm) |
46 – 53 cm | Golden Retriever, Labrador Retriever, Boxer, German Shepherd |
Dog Harness Size Guide
| Size (Strap width) |
Chest circumference |
Example breeds |
|---|---|---|
| S (2.5 cm) |
39 – 46 cm | Shih Tzu, Lhasa Apso, Havanese |
| M (2.5 cm) |
46 – 56 cm | Pug, French Bulldog, Beagle, Cocker Spaniel, Cavalier King Charles Spaniel |
| L (3.2 cm) |
56 – 64 cm | Basset Hound, Bearded Collie, Border Collie, Large Münsterländer |
| XL (3.8 cm) |
64 – 72 cm | Australian Shepherd, Standard Schnauzer, Dalmatian, English Bulldog |
| XXL (3.8 cm) |
72 – 85 cm | Golden Retriever, Labrador Retriever, Boxer, Siberian Husky, German Shepherd |