Pippa
Chihuahua · wears XS
Size Guide
Fit made simple
Find their perfect fit.
A comfortable fit means happier walks. Measure your dog, choose each item separately, and use the guide below to find the best size.
A helpful starting point
See the sizes on real breeds.
Meet five dogs wearing sizes XS to XL. Swipe through for a quick visual starting point, then use your dog’s measurements below for the final fit.
Daisy
Miniature Poodle · wears S
Milo
Cocker Spaniel · wears M
Luna
Labrador Retriever · wears L
Max
Bernese Mountain Dog · wears XL
Breed is only a guide. Dogs of the same breed can be built differently, and harness and collar sizes may differ. Always measure before ordering.
TidyTails size guide
Choose an item
Measure the chest first
Harness sizing
Measure around the fullest part of your dog’s chest, just behind the front legs. Then check the neck range.
Best fit: choose primarily by chest measurement, then check the neck range.
| Size | Neck (cm)(in) | Chest (cm)(in) |
|---|---|---|
| XS | 26–3810.2–15.0 | 28–5811.0–22.8 |
| S | 31–4512.2–17.7 | 36–6914.2–27.2 |
| M | 38–5215.0–20.5 | 45–8017.7–31.5 |
| L | 43–5816.9–22.8 | 45–10017.7–39.4 |
| XL | 48–8118.9–31.9 | 52–11620.5–45.7 |
Measure where the collar sits
Collar sizing
Measure around the middle of your dog’s neck and leave enough room to comfortably slide two fingers underneath.
| Size | Neck (cm)(in) | Width (cm)(in) |
|---|---|---|
| XS | 21–368.3–14.2 | 1.50.6 |
| S | 28–4411.0–17.3 | 1.50.6 |
| M | 32–5012.6–19.7 | 2.00.8 |
| L | 41–6616.1–26.0 | 2.51.0 |
| XL | 51–8020.1–31.5 | 3.81.5 |
One dependable size
Leash sizing
Every TidyTails Everyday Leash is 152 cm long and 2.0 cm wide.
| Size | Length (cm)(in) | Width (cm)(in) |
|---|---|---|
| One size | 15259.8 | 2.00.8 |
Buying the Walking Set? Harness and collar sizing can differ, so select each size separately. Your matching leash is included as standard.
Four quick steps
How to measure your dog
Use a soft measuring tape. Keep it comfortably snug—not tight.
Measure the neck
Wrap the tape around the middle of the neck, where the collar naturally sits.
Measure the chest
Measure the widest part of the ribcage, just behind the front legs.
Check the comfort
Leave enough room to slide two fingers between the tape and your dog.
Between sizes?
Choose the larger size for better comfort and adjustability.
Still unsure?
We’ll help you find the right fit.
Find a starting size for your dog
Not sure where to begin? Swipe through our common breed examples to find a likely starting size, then use the measurement tables below to confirm the best fit.
Swipe to explore sizes
Extra Small
XS
- Small Boston Terrier
- Small Jack Russell Terrier
- Larger Shih Tzu
- Larger Havanese
The XS harness neck starts at 33 cm. Many toy dogs are smaller, so confirm both neck and chest before ordering.
Small
S
- Cavalier King Charles Spaniel
- Miniature Schnauzer
- West Highland White Terrier
- Pug
Pugs and other broad-necked dogs may need M; smaller individuals may fall into XS.
Medium
M
- Cocker Spaniel
- Border Collie
- English Springer Spaniel
- Standard Schnauzer
Smaller adults may fit S, while broader or heavier individuals may need L.
Large
L
- Labrador Retriever
- Golden Retriever
- Boxer
- Dalmatian
- Siberian Husky
Smaller females can fall into M; especially large or broad adults may need XL.
Extra Large
XL
- Bernese Mountain Dog
- Rottweiler
- Great Dane
- Cane Corso
Very large individuals can exceed the XL maximums, so check the 81 cm harness neck, 116 cm chest and 80 cm collar neck limits.
SIZE GUIDE
Find their best fit
Measure your dog before ordering. Use a soft tape and leave enough room for two fingers. Between sizes? Size up.
Harness
Measure around the base of the neck and the widest part of the chest.
XS — Neck 26–38 cm · Chest 28–58 cm
S — Neck 31–45 cm · Chest 36–69 cm
M — Neck 38–52 cm · Chest 45–80 cm
L — Neck 43–58 cm · Chest 45–100 cm
XL — Neck 48–81 cm · Chest 52–116 cm
Collar
Measure where the collar naturally sits and allow room for two fingers.
XS — Neck 21–36 cm · Width 1.5 cm
S — Neck 28–44 cm · Width 1.5 cm
M — Neck 32–50 cm · Width 2 cm
L — Neck 41–66 cm · Width 2.5 cm
XL — Neck 51–80 cm · Width 3.8 cm
Leash
One size — 152 cm long × 2 cm wide.
FIT HELP
How to measure
Measure around the base of the neck, then around the widest part of the chest just behind the front legs. Your dog should fit inside both ranges.
Measure where the collar normally sits. Keep the tape snug, then allow room for two fingers.
Email support@tidytailsworld.com with your dog’s neck and chest measurements and we’ll help you choose.