1.Size Information: Please pay attention to measure the pet. XS: Chest: 7.8";Back Length6". The doggie pajamas sweater Size S,M fit for tiny dog,little dog,extra small dog,miniature dog; The dog pajamas onesies apparel Size L,XL fit for medium size dog. 2.Material: The dog apparel is made of high-quality flannel, warm to the skin and make your dog feel comfortable all day.Suitable for machine washing or hand washing.The leg holes are elastic, which is very convenient to wear and take off. 3.Dog Flannel Pajamas: The small dog pajamas onesie made of flannel fabric. The fleece dog pajamas is snug soft & comfortable; with the soft fluffy material dog pjs will kee your dog extra warm on the particularity cold days. The winter small dog clothes with legs not only recommend for small dog girl but also for small dog boy. 4.Occasion: The puppy dog pajamas is suitable for daily wear, parties, take photo, pet shows, holiday celebrate, festive dress, wedding, travel, sleeping and so on, it's great Christmas and new year gift for your pet. The belly crotch and rear are all open of this Dog pajamas outfits, no need to remove when dog goes potty. 5.Dog pjs fit for Small & Medium Sized Dog: There fleece dog pajama puppy pjs clothes not only fit for extra small dogs such as doggy, puppies, Yorkie, Toy Poodle, Chihuahua, Maltese, Pomeranian, Maltese, Bichon, Shih Tzu, Min Pin but also fit for medium size dog such as: Bichon, Fox Terrier, Jack Russel, Scottie, Spaniel Westie, Pug, Boston Terrier, Beagle French Bulldog, English Bulldog, Schnauzer.