MATERIAL & DESIGN: Made of 100% soft, durable and lightweight polyester minky to provide a comfy layer of warmth for those chilly days and nights. 4-legs design with elastic waist and stretch that goes around the body not the length which is very friendly for dogs who have tails. And no needs to worry about midnight potty breaks as most of our dog pajamas have an open belly for easy potty time.ADVANTAGE: The small dog pajamas are easy to put on and take off. And they are available in a variety of fun designs so you can show off your doggie's sense of style. Stylish pajamas are not only comfortable, but they keep dander and hair off of your furniture. Puppy pajamas are also a good idea as new puppies have less fat than an adult dog to help them keep warm.WIDELY APPLICABLE: So cute this amazing kind of pajamas for your cat/dog baby It's perfect for sleep time or normal party or everyday wear or travel or holiday or just take photo with you. Of course, it also can get friends' more love and attentionMACHINE WASHABLE: These cute pjs are easy to clean and can be thrown into the washing machine on the cold cycle. Then air dry or put them in the dryer for a short timetumble dry low, it's better below 30) .Size:XS: Chest Girth:12.2"/31CM, Neck Girth:7.9"/20CM, Back Length:8.7"/22CM, recommended weight 3-4.5 lbs.S: Chest Girth:13.8"/35CM, Neck Girth:9.1"/23CM, Back Length:9.8"/25CM, recommended weight 4.5-7 lbs.M: Chest Girth:15.7"/40CM, Neck Girth:10.2"/26CM, Back Length:11.4"/29CM, recommended weight 7-11 lbs.L: Chest Girth:17.3"/44CM, Neck Girth:11.8"/30CM, Back Length:12.6"/32CM, recommended weight 11-15 lbs.XL: Chest Girth:18.9"/48CM, Neck Girth:13.8"/35CM, Back Length:13.7"/34CM, recommended weight 15-21 lbs.Package Include:1 Cherry Pattern Dog Pajamas.1 Hippo Pattern Dog Pajamas.