How to measure the dog size?

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 Details:

Size XL for body 40cm(15.7inch),Chest 53-65cm(20.8inch-25.5inch),Neck 46cm(18.1inch);

Size 2XL for body 45cm(17.7inch) ,Chest 58-70cm(22.8inch-27.5inch),Neck 50cm(19.6inch);

Size 3XL for body 50cm(19.6inch),Chest 65-78cm(25.5inch-30.7inch),Neck 55cm(21.6inch);

Size 4XL for body 55cm(21.6inch),Chest 72-86cm(28.3inch-33.8inch),Neck 60cm(23.6inch);

Size 5XL for body 60cm(23.6inch),Chest 82-90cm(32.2inch-35.4inch),Neck 64cm(25.1inch);

Size 6XL for body 65cm(25.5inch),Chest 75-95cm(29.5inch-37.4inch),Neck 68cm(26.7inch);