1.Our puppy pjs clothes only suitable for extra small and Small Dog breed, such as Teacup dogs, Chihuahua & Yorkie.so our sizes are much smaller than other common pet clothes. 2.The summer spring small dog outfits not only for small dog boy and dog girl but also recommended to cats/ kitten and other small animals bunny / rabbit, Guinea pig. 3.Breathable Soft DesignTiny puppy clothes made of cotton blend, with Fabric lining, soft & comfortable. With tiny dog dog outfits keep your fur baby pet doggie cold weather keep warm. 4.Cute : Casual stylish, perfect for parties and holidays occasions, fit for everyday wear and night pajamas clothes, also nice props for taking pet picture and a good choose of dog gifts for dog's birthday. 5.RangesSmall dog onesie For 0.5 lbs to 6 lbs of the pet Eg, Chihuahua, Pomeranian, Yorkshire Terrier, Pugs, Maltese, Shih Tzu puppy, Poodle, Mini dachshund, Maltipoo, Boston terrier puppy, Yorkie,Toy poodle, French bulldog puppy, Miniature poodle, min pin and so on