What Do Pets Need

What size coat for my dog?

Hurtta and Canada Pooch size their coats by back length, from the base of the neck to the base of the tail, and chest girth; Ruffwear by girth alone. Canada Pooch says the chest girth matters even more than the back length.

How to measure

  1. Back length: from the base of the neck, where it meets the shoulders, to the base of the tail (Hurtta, Canada Pooch).
  2. Chest: around the widest part of the rib cage, just behind the front legs.
  3. Neck: around the base of the neck, for Hurtta’s chart.
A dog standing side-on with three measuring marks: a line along the back from the base of the neck to the base of the tail, a ring around the base of the neck and a ring around the chest just behind the front legs.
Coats go by the back length, along the top of the dog, and the chest girth just behind the front legs. Hurtta’s chart adds the neck, measured round its base.

Hurtta Walk All-Season Jacket

Hurtta Walk All-Season Jacket sizes
SizeBack lengthNeckChest
28 / 11″9.8–11.8 in (25–30 cm)7.9–11.8 in (20–30 cm)11.8–17.7 in (30–45 cm)
30 / 12″10.6–12.6 in (27–32 cm)9.8–13.8 in (25–35 cm)13.8–19.7 in (35–50 cm)
35 / 14″12.6–14.6 in (32–37 cm)9.8–15.7 in (25–40 cm)15.7–21.7 in (40–55 cm)
40 / 16″14.6–16.5 in (37–42 cm)9.8–17.7 in (25–45 cm)17.7–23.6 in (45–60 cm)
45 / 18″16.5–18.5 in (42–47 cm)11.8–19.7 in (30–50 cm)19.7–25.6 in (50–65 cm)
50 / 20″18.5–20.5 in (47–52 cm)13.8–21.7 in (35–55 cm)21.7–29.5 in (55–75 cm)
55 / 22″20.5–22.4 in (52–57 cm)15.7–23.6 in (40–60 cm)23.6–31.5 in (60–80 cm)
60 / 24″22.4–24.4 in (57–62 cm)17.7–23.6 in (45–60 cm)25.6–33.5 in (65–85 cm)
65 / 26″24.4–26.4 in (62–67 cm)17.7–25.6 in (45–65 cm)27.6–35.4 in (70–90 cm)

Canada Pooch

Canada Pooch size chart (inches)
Size (back length)Chest girth up to
816
1018
1221
1422
1626
1828
2030
2233
2434.5
2638
2839
30 (select styles)42
32 (select styles)43
34 (select styles)45
36 (select styles)47

Sizes 30 to 36 come in select styles only, and Canada Pooch says to check the size on each product, since sizes may vary slightly.

Ruffwear coats

Ruffwear sizes its apparel by girth alone, on the same chart as its harnesses and packs.

Ruffwear harness, apparel and pack sizes by girth
SizeGirth (in)Girth (cm)
XXXS9–1323–33
XXS13–1733–43
XS17–2243–56
S22–2756–69
M27–3269–81
L32–3681–91
XL36–4291–107

The same back size, two fits

Canada Pooch’s size 16 is a 16 in back with a chest up to 26 in. Hurtta’s 40 / 16 is a 14.6–16.5 in back with a 17.7–23.6 in chest. Measure both before you choose.

Common questions

What if my dog's back and chest point to different sizes?

Canada Pooch says chest girth is even more important than back length, and to size up when in doubt so the coat fits the chest comfortably.

Available on Amazon

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Where we get our information from

Coat sizes come from Hurtta’s, Canada Pooch’s and Ruffwear’s own size charts. Checked against published data from Ruffwear, Hurtta and Canada Pooch.

See all 3 sources
  • Ruffwear, The Size is Right: How to Measure for Your Dog's Gear (size guide)
  • Hurtta, Walk All-Season Jacket (product page and size chart)
  • Canada Pooch, Size Guide (size chart image)

General care guidance from animal welfare charities, vets and makers' published sizes. It isn't veterinary advice: if your pet seems unwell or has eaten something it shouldn't, call your vet.