Size guide
Please refer to the graphic above and follow the instructions very carefully to measure your dog. Then find their size in the charts below:
If your dog is between letter sizes, size UP for fleece, size DOWN for lightweight (e.g. 29” chest will be K for fleece, J for lightweight)
If your dog falls outside the size chart, especially in length, unless they are an exceptionally oddly-shaped dog, remeasure!
TIPS:
make sure your dog is standing, not sitting, with all four legs on the ground
make sure your dog's body is straight, not curved (try to get them to look straight ahead, which admittedly sounds easier than it is)
make sure you're starting at the BASE of the neck (closer to the shoulder blades than the ears)