Chest: measure the thickest part of the chest, add 1~2CM will be better. (Usually behind the two legs) Length: Make sure your dog stands properly, not sitting or lying. Measure along the dog's backbone from the base of the neck to 5CM front the base of the tail. Neck: the girth of the neck, add 2~3CM will be better.
Note: If your dog is a large chest, long hair, or at the high end of the size, you may order the next larger size to ensure a comfortable fit.
Size S for body 19cm(7.48inch), Chest 30cm(11.8inch), Neck 21cm(8.27inch);
Size M for body 23cm(9.05inch), Chest 35cm(13.78inch), Neck 24cm(9.45inch);
Size L for body 28cm(11inch), Chest 40cm(15.75inch), Neck 27cm(10.63inch);
Size XL for body 33cm(12.99inch), Chest 45cm(17.72inch), Neck 30cm(11.8inch);
Size XXL for body 38cm(14.96inch), Chest 50cm(19.69inch), Neck 33cm(12.99inch);