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Size guideHow to measure a Chihuahua or other small dog for a hat or sweater

Every Caperro piece is knitted after you order, to the size you choose — or to your dog's own measurements. Two minutes with a soft tape measure is all it takes.

How to measure

  1. 01

    Head circumference

    Wrap the tape under the chin and over the top of the head. Snug, not tight. This decides the hat size.

  2. 02

    Neck circumference

    Measure around the base of the neck, where the collar sits.

  3. 03

    Distance between ears

    A straight line across the top of the head, from the base of one ear to the other.

  4. 04

    Weight

    Sweaters are sized by weight — weigh your dog, or send chest and back length for a custom fit.

Hat size chart

For the Pom-Pom Hood and the Pom-Pom Beanie, by head circumference. Most Chihuahuas wear XXS.

Dog hat sizes by head circumference, with prices
SizeHead (cm)Head (in)HoodBeanie
XXXS15–186–7€21.70€21.70
XXS18–207–8€23.20€23.20
XS20–238–9€24.70€24.70
S23–259–10€26.10€26.10
M25–2810–11€27.30€27.30
L28–3111–12€28.80€28.80
XL31–3312–13€29.90€29.90
Custom33+13+€33.00€33.00

Prices exclude VAT, added at checkout where it applies.

How to measure a dog for a hat: head circumference, neck circumference, distance between the ears and ear length

Sweater size chart

For the Cable Sweater, by the dog's weight, with neck, back and chest in centimetres.

Dog sweater sizes by weight, with neck, back and chest measurements and prices
SizeWeight (kg)NeckBackChestPrice
XXXS0.3–0.512–1514–1618–24€26.00
XXS0.5–113–1715–1821–26€31.00
XS1–1.517–2120–2225–30€39.00
S1.5–2.221–2525–2728–33€48.00
M2.2–3.826–3029–3230–35€58.00
L3.8–528–3234–3732–38€68.00
Custom5+your sizeyour sizeyour size€80.00
How to measure a dog for a sweater: neck girth, back length and chest girth, with the size chart

Sizing questions

What size hat does a Chihuahua wear?

Most Chihuahuas wear XXS, a head circumference of 18–20 cm (7–8 in). Measure your dog to be sure: heads vary a lot within the breed.

My dog is between two sizes — which one?

For the Pom-Pom Hood choose the smaller size: the knit stretches gently and the ties hold it. For the Pom-Pom Beanie choose the larger one: it has no ties and stays on by stretch, so a little room is more comfortable. For a sweater, or a long-bodied dog, choose Custom and send the measurements.

How do I measure my dog's head for a hat?

Wrap a soft tape under the chin and over the top of the head, snug but not tight. That number is the head circumference; pick the size whose range contains it.

How do I size a dog sweater?

Sweaters are sized by weight. For a closer fit, measure the neck where the collar sits, the back from the neck to the base of the tail, and the chest at its widest point behind the front legs, then compare with the chart.

Knitted for Chihuahua, Yorkshire Terrier, Pomeranian, Maltese, Shih Tzu, Miniature Dachshund, Toy Poodle, Papillon, Havanese, Bichon Frise, Italian Greyhound, Miniature Pinscher, Pug, French Bulldog and other small dogs.