Soft Material: Our fleece dog sweater is made of 100% soft and durable polyester 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: Kuoser dog pajamas are easy to put on and take off. 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. Whether for daily dog walking or travel wear even as a pajama, this dog coat is particularly attractive. Machine Washable: These dog 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 time（tumble dry low, it's better below 30℃) . Please send us your request to exchange without any hesitation if our dog clothes don't fit your dogs or cats or small pets after received.