Size Guide
Please measure before you order
Dog sizing isn't about weight — it's about proportions. Take two measurements with a soft tape and go by those, not by breed.
How to measure
Chest girth: around the widest part of her ribcage, just behind the front legs. This is the measurement that decides the fit.
Back length: along the spine, from the base of the neck (where a collar sits) to the base of the tail.
Size chart
| Size | Chest girth | Back length | Typical breeds |
|---|---|---|---|
| S | 15.75 in / 40 cm | 9.84 in / 25 cm | Chihuahua, Yorkie, toy breeds |
| M | 17.32 in / 44 cm | 11.02 in / 28 cm | Maltese, Pomeranian, Mini Dachshund |
| L | 19.69 in / 50 cm | 12.20 in / 31 cm | Shih Tzu, Pug, Mini Schnauzer |
| XL | 22.05 in / 56 cm | 13.78 in / 35 cm | French Bulldog, Boston Terrier |
| 2XL | 24.41 in / 62 cm | 15.75 in / 40 cm | Corgi, Beagle, Cocker Spaniel |
| 3XL | 27.56 in / 70 cm | 19.29 in / 49 cm | Border Collie, Aussie Shepherd |
| 4XL | 29.92 in / 76 cm | 22.05 in / 56 cm | Labrador, Boxer, Springer Spaniel |
Three rules of thumb
- Between sizes? Size up. Slightly long is far better than pulling across the shoulders.
- Strong, bushy or deep-chested? Size up. Bulldogs, Staffies, Huskies and thick double coats all need the extra room.
- Still growing? Size up. Buy for the dog she is about to be.
4XL is our largest size and fits up to a 22 in / 56 cm back. If she measures longer than that, this jacket won't fit her — we would rather tell you now than take the order.
Breeds above are a rough guide only. Send us her chest girth and back length through the contact form and we will tell you exactly which size to order.