【Fits For Small Dogs】Chest girth:18.1'', Back length:11.8'', Neck girth: 13.8'', Weight:13-19LBS. Recommended for Boston Terrier,Cocker,Spaniel,Schnauzer,Westie,Pug. Measuring your pets chest girth and back length before ordering. If the measurement of your pet is between two sizes, please choose the larger size. If your dog is stronger or has thick hair, order one size up would be better. 【Premium Material】-TONY HOBY Dog Pajamas are supported by soft polyester-cotton blend fabric, light, soft and breathable, very suitable for enough daily wear. 【Unique Design】-TONY HOBY Female/Male Dog Pajamas has a unique design for men and women, focusing on protecting the dog's abdomen; and using metal buttons, easy to wear; unique four-leg design, elastic waist, and with bright stripes, beautiful and fashionable. 【Most Usage】-TONY HOBY Dog Shirt is suitable for small and medium dogs. It can be used as dog pajamas, dog T-shirts, and dog recovery clothes after surgery. It can be used in daily wear, travel, and parties. 【VIP】-If you have any questions about our TONY HOBY Pet Clothes, we will provide you with the best quality service until the problem is solved for you. Tony Hoby is professional in pet dog clothes field, we have our own factory to manufacture, all key parts of the pet clothes are handled by our workers. Differently from the market, our pet clothes are uniquely designed, the sizes conforming to 8 lovely dogs that are fed by ourselves. And all the clothes are made by cotton to guarantee the best quality. In our store, you can find all fashionable styles you need. Dog pajamas, dog shirts, dog skirts, dog suspenders, dog jeans etc, all the year around clothes for you choosing. Please refer to below size chart and choose the suitable size for your puppy. If your puppy falls in between sizes, please choose larger XS: Chest Girth 12'' - 13", Back Length 8" | Recommend Pet Dog Weight 2.2 - 4 lbs S: Chest Girth 13'' - 14", Back Length 10" | Recommend Pet Dog Weight 4.2 - 5.7 lbs M: Chest Girth 15'' - 16", Back Length 12" | Recommend Pet Dog Weight 5.5 - 8.8 lbs L: Chest Girth 16'' - 18", Back Length 14" | Recommend Pet Dog Weight 8.8 - 12.1 lbs XL: Chest Girth 18'' - 20", Back Length 16" | Recommend Pet Dog Weight 12.1 - 14.3 lbs How to Measure your Baby Pet? Tracking the pet dog's body line with a tape while the dog is standing Neck Girth: Girth of the pet's neck Chest Girth: Widest Girth around the dog's chest Back Length: From the "V" point of the vest to the tail Our Service Purpose To ensure you get the right size pet clothes for your puppy To care your honest partner with you forever Kind Note: There will be 1-2cm difference due to manual measurement