THE FITWARM SIZE GUIDE

Little outfits.
A just-right fit.

MADE FOR THEIR MEASUREMENTS

Find their size

Measurements
Measurement unit
in

Measure snugly around the widest chest, without adding room.4–60 in.

in

From neck base to tail base, to check coverage.2–40 in.

Need a hand measuring?

Enter body measurements without extra room. We allow 2.5 cm around the chest. Check the specific product’s chart.

Dog wearing Fitwarm pajamas
A LITTLE TAPE. A LOT OF COMFORT.

Their next favorite outfit
starts with the right fit.

MEASURE ONCE. DRESS HAPPY.

Three little steps.

Dog measurement diagram: chest girth around the widest chest, back length from neck base to tail base.
  1. Start with the chest

    With your dog standing, wrap a soft tape snugly around the widest part of the chest, just behind the front legs. Enter this body measurement; the finder adds 2.5 cm for comfort.

  2. Check the back length

    Measure from the base of the neck to the base of the tail. Keep the tape along the back and leave the tail out. Use back length to check coverage, especially for long-bodied dogs.

  3. Match the clothing category

    Choose the right chart below. For two-piece outfits, measure the waist too; for bandanas, measure around the neck with two fingers of room.

No soft tape?Use a piece of string or a leash, then measure it against a ruler.Full measuring guide

THE DETAILS THAT MAKE THE FIT

A chart for every outfit.

Size chart unit

Everyday & warm wear

XS–XXL
Everyday & warm wear size chart
SizeChest girthBack length
XS12 in / 31 cm8 in / 20 cm
S14 in / 36 cm10 in / 25 cm
M16 in / 41 cm12 in / 31 cm
L18 in / 46 cm14 in / 36 cm
XL21 in / 53 cm16 in / 41 cm
XXL23 in / 58 cm18 in / 46 cm

These are garment measurements. Allow 2.5 cm beyond your dog’s chest. Back length is a coverage guide. Use the product’s own chart if it differs.

Dresses

XXS–L
Dresses size chart
SizeChest girthBack length
XXS10 in / 25 cm8 in / 20 cm
XS12 in / 31 cm10 in / 25 cm
S14 in / 36 cm12 in / 31 cm
M16 in / 41 cm14 in / 36 cm
L18 in / 46 cm16 in / 41 cm

These are garment measurements. Allow 2.5 cm beyond your dog’s chest. Back length is a coverage guide. Use the product’s own chart if it differs.

Bikinis & two-piece

XS–L
Bikinis & two-piece size chart
SizeChest girthWaist girth
XS12 in / 30 cm10 in / 25 cm
S14 in / 35 cm12 in / 30 cm
M16 in / 40 cm14 in / 35 cm
L18 in / 45 cm16 in / 40 cm

These are garment measurements. Allow 2.5 cm beyond your dog’s chest and waist. Use the product’s own chart if it differs.

Bandanas

XS / M / XL
Bandanas size chart
SizeNeck girth
XS8–14 in / 20–36 cm
M12–18 in / 31–46 cm
XL16–27 in / 41–69 cm

Neck ranges overlap. Start with the smallest range that comfortably accommodates your dog’s neck; check the product’s tying instructions.

A FAMILIAR FACE. A HELPFUL START.

Find by breed.

Find a starting size range, then measure for their individual fit.

Chihuahua wearing Fitwarm clothing

Choose a breed from the results below.

A LITTLE EXTRA FIT ADVICE

Still between sizes?

Let’s find their fit together
What if the chest and back suggest different sizes?

Choose for chest room first. Long-bodied dogs such as Dachshunds and broad-chested dogs such as French Bulldogs may have a different back fit. Check coverage and freedom of movement rather than sizing up just to match the back.

Will the same size fit across every style?

Not always. Dresses and everyday clothing use different charts, and individual designs can vary. Check the chart on the specific product page before ordering.

What about fluffy dogs and growing puppies?

Measure over the coat without compressing it or adding extra room. The finder adds 2.5 cm around the chest. Remeasure growing puppies before each order.