Size:M | Color:Style1 How to measure the dog size? Chest: measure the thickest part of the chest, add 2~3CM 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: This dog clothes is for small toy dogs or cat under 20 pounds Size XS: Neck Girth:6-7inch;Chest Girth:10-11.5inch.Back Length:6-8inch; Weight 1-2 pounds Size S: Neck Girth:7-8.5inch;Chest Girth:11-12.5inch;Back Length:7-8.5inch; Weight 2-5.5 pounds Size M: Neck Girth:8-9.5inch;Chest Girth:14-15.5inch;Back Length:8.5-10inch; Weight 5.5-10 pounds Size L: Neck Girth:9.5-11inch;Chest Girth:15.5-17inch;Back Length:10.5-12inch; Weight 10-14 pounds Size XL: Neck Girth:11-12.5inch;Chest Girth:18-19.5inch;Back Length:12.5-14inch; Weight 14-18.5 poundsBreed recommed: (for reference only): Teddy or Poodle Adult dogs: sometime take M, L, XL Chihuahua Adult dogs: sometime take XS, S or M Pomeranian Adult dogs: sometime take S or M Miniature Schnauzers Adult dogs: sometime take L or XLThe recommend weight is just for reference, please kindly take a measurement of your dog before buy,thanks.