Chihuahua Harnesses & Collars

Our ancestors kept the Toltecs and the Aztecs company, so us Chihuahuas have been running the household for a very long time. We may be the smallest dog in the world, but nobody told us, and we will happily square up to a dog ten times our size on the...

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PUPSTYLE Harness Wild One Dog Harness

Wild One Dog Harness

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PUPSTYLE Harness Houndbury Dog Harness

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PUPSTYLE Harness Blueberry Muffin Dog Harness

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PUPSTYLE Bundle Wild One Style Bundle

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PUPSTYLE Bundle Berry Milkshake Style Bundle

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PUPSTYLE Collar Wild One City Dog Collar

Wild One City Dog Collar

From $49.95
PUPSTYLE Collar Houndbury City Dog Collar

Houndbury City Dog Collar

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PUPSTYLE Collar Emerald Envy City Dog Collar

Emerald Envy City Dog Collar

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PUPSTYLE Collar Sweet Apple Suburban Dog Collar

Sweet Apple Suburban Dog Collar

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PUPSTYLE Collar Stripe Squad City Dog Collar

Stripe Squad City Dog Collar

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PUPSTYLE Leash Wild One City Dog Leash

Wild One City Dog Leash

$52.95

What size does a Chihuahua need?

Here is what each size usually looks like on a Chihuahua. On the smallest breed in the world a centimetre either way makes a real difference, so go by the tape measure rather than their weight: measure the neck and the widest part of the chest, then match the chest to the size chart. Every other breed is on our size guide by breed.

Puppies and fully grown Chihuahuas up to about 3kg wear an XS harness; Chis over 3kg move into an S. The very smallest Chihuahuas can be too little for some of our ranges, so measure before you order. Collars are sized on the neck and harnesses on the neck and chest, so plenty of Chihuahuas take a different size in each.

ProductPuppyFully grown (up to 3kg)Fully grown (over 3kg)
Step-in harness
(City & Suburban)
XSXSS
Adventure strap harnessNot suitableNot suitableNot suitable, use the step-in
City vegan leather collarToo big for a brand new puppySS
Suburban & Adventure collarXSXS
(many stay in XS for life)
S if they outgrow the XS
Button-up bandanaSSS

How to Measure Your Chihuahua

  • Use a soft measuring tape for the most accurate results.
  • Measure around the widest part of the chest, just behind the front legs. Keep the tape snug, because on a dog this small a centimetre either way can change the size.
  • Measure around the base of the neck where the collar would sit.
  • If between sizes, go by the chest measurement. Both the neck and the chest adjust to take in the extra.

Pick a breed that is the closest to your dog

Select a breed above to see size recommendations

Aussie Shepherd

Size Best For Age/Stage
SAussie Shepherd Puppyup to 5-10 months
MAussie Shepherd Puppy / Smaller Adults5-10 months / Adult Female
LFully Grown Aussie ShepherdAdult
XL / AdventureStronger Aussie Shepherd MalesAdult Male

Individual dogs may vary. We always recommend measuring your dog for the best fit.

Beagle

Size Best For Age/Stage
SBeagle Puppyup to 7-9 months
MFully Grown Beagle / FemaleAdult / Adult Female
LFully Grown Beagle MaleAdult Male
XLChunky Fully Grown Beagle MaleChunky Adult Male

Individual dogs may vary. We always recommend measuring your dog for the best fit.

Cavalier King Charles Spaniel

Size Best For Age/Stage
XSCavalier Puppyup to 6-9 months
SFully Grown Cavalier up to 6kg/13lbsAdult
MFully Grown Cavalier over 6kg/13lbsAdult

Individual dogs may vary. We always recommend measuring your dog for the best fit.

Cavoodle

Size Best For Age/Stage
XSCavoodle Puppyup to 6-9 months
SFully Grown Toy Cavoodle up to 6kg/13lbsAdult
MFully Grown Regular Cavoodle over 6kg/13lbsAdult

Individual dogs may vary. We always recommend measuring your dog for the best fit.

Shop cavoodle harnesses and collars

Chihuahua

Size Best For Age/Stage
XSChihuahua Puppy / Fully Grown up to 3kg/6lbsup to 10 months / Adult
SFully Grown Chihuahua over 3kg/6lbsAdult

Note: Some product ranges may not be suitable for very small Chihuahuas. Individual dogs may vary.

Shop Chihuahua harnesses and collars

Cocker Spaniel

Size Best For Age/Stage
SCocker Spaniel Puppyup to 6-8 months
MCocker Spaniel Puppy / Small Adult Females6-11 months / Adult Female
LFully Grown Cocker SpanielAdult

Individual dogs may vary. We always recommend measuring your dog for the best fit.

Corgi

Size Best For Age/Stage
SCorgi Puppyup to 8-9 months
MCorgi Puppy / Smaller Adult Female8-12 months / Adult Female
LFully Grown Corgi / Chunky CorgiAdult

Individual dogs may vary. We always recommend measuring your dog for the best fit.

Dachshund (Mini)

Size Best For Age/Stage
XSMini Dachshund Puppyup to 6-9 months
SFully Grown Mini Dachshund up to 6kg/13lbsAdult
MFully Grown Mini Dachshund over 6kg/13lbsAdult

Individual dogs may vary. We always recommend measuring your dog for the best fit.

Shop dachshund harnesses and collars

Dachshund (Standard)

Size Best For Age/Stage
SStandard Dachshund Puppyup to 7-9 months
MFully Grown Standard Dachshund up to 10kg/22lbsAdult
LFully Grown Standard Dachshund over 10kg/22lbsAdult

Individual dogs may vary. We always recommend measuring your dog for the best fit.

Shop dachshund harnesses and collars

Dalmatian

Size Best For Age/Stage
MDalmatian Puppyup to 9-10 months
LFully Grown DalmatianAdult

Individual dogs may vary. We always recommend measuring your dog for the best fit.

French Bulldog

Size Best For Age/Stage
SFrench Bulldog Puppyup to 8-10 months
MFully Grown French BulldogAdult
LBigger Fully Grown French Bulldog MalesAdult Male

Individual dogs may vary. We always recommend measuring your dog for the best fit.

Shop French Bulldog harnesses and collars

Golden Retriever

Size Best For Age/Stage
MGolden Retriever Puppyup to 6-10 months
LFully Grown Golden RetrieverAdult

Individual dogs may vary. We always recommend measuring your dog for the best fit.

Groodle

Size Best For Age/Stage
SGroodle Puppyup to 10 months
MFully Grown GroodleAdult
LBigger Fully Grown Groodle MalesAdult Male

Individual dogs may vary. We always recommend measuring your dog for the best fit.

Italian Greyhound

Size Best For Age/Stage
XSItalian Greyhound Puppyup to 8 months
SFully Grown Italian GreyhoundAdult

Individual dogs may vary. We always recommend measuring your dog for the best fit.

Jack Russell

Size Best For Age/Stage
XSJack Russell Puppyup to 8 months
SSmall Fully Grown Jack RussellAdult
MBigger Fully Grown Jack RussellAdult

Individual dogs may vary. We always recommend measuring your dog for the best fit.

Japanese Spitz

Size Best For Age/Stage
XSJapanese Spitz Puppyup to 8-12 months
SFully Grown Japanese SpitzAdult

Individual dogs may vary. We always recommend measuring your dog for the best fit.

Kelpie

Size Best For Age/Stage
SKelpie Puppyup to 7-10 months
MSmall Fully Grown KelpieAdult
LBigger Fully Grown KelpieAdult

Individual dogs may vary. We always recommend measuring your dog for the best fit.

Labradoodle

Size Best For Age/Stage
SLabradoodle Puppyup to 7-10 months
MFully Grown Labradoodle / Small FemalesAdult / Adult Female
LBigger Fully Grown Labradoodle MalesAdult Male

Individual dogs may vary. We always recommend measuring your dog for the best fit.

Shop Labradoodle harnesses and collars

Labrador

Size Best For Age/Stage
MLabrador Puppyup to 6-10 months
LLabrador Puppy / Smaller Adults6-10 months
XLFully Grown LabradorAdult
Adventure StrapStronger Fully Grown LabradorAdult

Individual dogs may vary. We always recommend measuring your dog for the best fit.

Maltese X

Size Best For Age/Stage
XSMaltese X Puppyup to 8-10 months
SFully Grown Maltese XAdult

Individual dogs may vary. We always recommend measuring your dog for the best fit.

Miniature Schnauzer

Size Best For Age/Stage
XSMini Schnauzer Puppyup to 8 months
SMini Schnauzer Puppy / Small Adult8-11 months / Adult
MFully Grown Mini SchnauzerAdult

Individual dogs may vary. We always recommend measuring your dog for the best fit.

Papillon

Size Best For Age/Stage
XSPapillon Puppy / Small Adult Femalesup to 10 months / Adult Female
SFully Grown Papillon MalesAdult Male

Note: Some product ranges may not be suitable for very small Papillons. Individual dogs may vary.

Pomeranian

Size Best For Age/Stage
XSPomeranian Puppyup to 8 months
SFully Grown PomeranianAdult

Individual dogs may vary. We always recommend measuring your dog for the best fit.

Pug

Size Best For Age/Stage
SPug Puppyup to 6-8 months
MPug Puppy / Smaller Adult6-10 months / Adult
LFully Grown Pug / Bigger AdultAdult
XLBroad/Chunky Fully Grown PugAdult

Individual dogs may vary. We always recommend measuring your dog for the best fit.

Shop Pug harnesses and collars

Staffordshire Bull Terrier (Staffy)

Size Best For Age/Stage
SStaffy Puppyup to 6-8 months
MStaffy Puppy / Small Adults6-9 months / Adult
LFully Grown Staffy FemalesAdult Female
XLFully Grown Staffy Males / Broad FemalesAdult Male
Adventure StrapStronger/Chunky Neck Fully Grown StaffyAdult

Individual dogs may vary. We always recommend measuring your dog for the best fit.

West Highland Terrier (Westie)

Size Best For Age/Stage
SWestie Puppyup to 8-10 months
MSmaller Fully Grown WestieAdult
LBigger Fully Grown WestieAdult

Individual dogs may vary. We always recommend measuring your dog for the best fit.

Yorkshire Terrier

Size Best For Age/Stage
XSYorkshire Terrier Puppyup to 8-10 months
SFully Grown Yorkshire TerrierAdult

Note: Some product ranges may not be suitable for very small Yorkshire Terriers. Individual dogs may vary.

Why a Chihuahua should walk on a harness

It comes down to that tiny windpipe. Toy breeds like Chihuahuas are prone to tracheal collapse, where the rings of cartilage in the windpipe weaken and flatten, and pressure on the neck can make it worse. A collar that tightens every time they square up to a dog ten times their size puts all of that on a very delicate throat. A harness spreads it across the chest instead.

Ours is step-in, which matters on a dog with ears this big and eyes this prominent. You lay it flat, they step in, and the neck and chest clip closed, so nothing gets squeezed over their head. Most Chihuahuas wear our XS, the smallest size we make, and both the neck and the chest adjust for a snug fit on a little frame.

For walking, put the lead on the harness. It clips at the back, so nothing pulls on the neck, and the collar is for their tag and their name. And if your Chi is shivering on a winter walk, it is probably not drama (this time).

Want the full story on the pocket rocket? Read A Pupstyler's Guide to the Chihuahua.

Chihuahua Questions

Should a Chihuahua wear a harness or a collar?

Walk a Chihuahua on a harness. Toy breeds are prone to tracheal collapse, and pressure on the neck can make it worse. Keep a collar on for their ID tag and engraved charm if you like, and clip the lead to the harness.

What size harness does a Chihuahua need?

Most Chihuahuas wear our size XS, as puppies and once fully grown, as long as they are under about 3kg. Chihuahuas over 3kg usually move into an S. Measure the neck and the widest part of the chest and check them against the size chart on the product page.

Will your harness fit a very small Chihuahua?

The XS suits most Chihuahuas, but the very smallest Chis can be too little for some of our ranges. Measure first and compare against the XS size chart. Our smallest sizes are all together in the puppy collection.

What size collar does a Chihuahua need?

In our Suburban and Adventure strap collars, puppies wear an XS and many Chihuahuas stay in the XS for life, moving into an S only if they outgrow it. Our City vegan leather collar starts at a size S, which suits a fully grown Chihuahua but will be too big for a brand new puppy.

Can my Chihuahua wear the Adventure strap harness?

Not at the moment. Our strap harness sizing is too big for a Chihuahua, so stick with the step-in harness in an XS, or an S for Chis over 3kg.

What size bandana does a Chihuahua wear?

The S is the perfect fit for Chihuahuas, puppies and grown-ups alike.

My Chihuahua is between two sizes. Which should I order?

Go by the chest. If their chest measurement sits inside the XS range, choose the XS, because both the neck and the chest adjust to take it in snug. If it is over, choose the S. Our 30 Day Fit Guarantee means you can exchange it if the fit is not right.