1. Measure around your dog’s chest just behind the front legs
2. You may want to add 1 – 1.5 inch / 3 cm for allowance or comfort fit
3. Match the measurement to the next bigger Chest Girth size & choose the Size (eg. Chest Girth = 15 inch, Choose Size = Medium)
For certain dog breeds like Dachshund or Corgi which has long-backed body, you may want to check below full measurement details for the different jacket sizes.