


Size guide
Every Tarnhound coat and jumper is sized by back length, measured from the base of the neck to the base of the tail. Measure first, then use the calculator.
Made to be mended
Replacement buckles, straps and zips, fitted by us.
Cut for movement
Long in the back, short under the belly, free at the shoulders.
Plain, recycled packaging
Brown paper and card, no plastic mailers.
Sized by back length
Six sizes, and a calculator on every page.
Size calculator
Which size is your dog?
Coats are sized by back length, not by breed or weight. Thirty seconds with a tape measure is the difference between a coat that fits and a return.
Measure along the spine from the base of the neck, where the collar sits, to the base of the tail. See the full size chart
| Size | Back length | Chest up to | Often fits |
|---|---|---|---|
| XXS | 20 to 26 cm | 36 cm | Chihuahuas, toy poodles |
| XS | 26 to 32 cm | 44 cm | Miniature dachshunds, Yorkshire terriers |
| S | 32 to 40 cm | 54 cm | Jack Russells, border terriers |
| M | 40 to 48 cm | 64 cm | Cocker spaniels, whippets, beagles |
| L | 48 to 58 cm | 76 cm | Border collies, springer spaniels |
| XL | 58 to 70 cm | 90 cm | Labradors, golden retrievers |
Jumpers and fleeces run XXS to L; collars, snoods and the boot mat have their own sizes on the product page. Unusual shape, or still not sure? Send us the measurements before you order.

Measure once, order once
- Stand your dog square on a flat floor
- Find the base of the neck, where the collar sits
- Run a soft tape along the spine to the base of the tail
- Leave the tail out, and write the number down
Then put it into the calculator above. On the line between two sizes, take the larger one.
Questions about this piece
How do I choose a size?
Measure the back length, from the base of the neck to the base of the tail, and use the size calculator on this page. The full chart is under Size and fit above.
Will it go over a harness?
The walking coats, the parka, the rain jacket and the cooling vest all have an opening on the back for the lead. Knitwear and fleece are made to be worn on their own or under a coat.
How do I get my dog used to wearing it?
- Let them sniff it on the floor first
- Put it on indoors for a minute, with a treat, then take it off
- Build up to a few minutes around the house
- Then the first short walk
A coat that goes on without a wrestle is a coat that gets worn.
What if it does not fit?
Send it back unworn, with the tags on, within 30 days and we swap the size or refund it.