LovinPet Soft Dog Pajamas Adorable Shirt Pet Clothes Cotton with Snap Button (Please Read Description) SIZE REMINDER: Don't buy a size based on another brand. Purchase based on our size chart as ours differs from the rest. A good majority of the time, the dog has a bigger chest than what the size chart recommends. Measure your dog and adjust the size according to it's chest girth, It's okay if its a little long. COMFY & SOFT DOG PAJAMAS: The material is soft cotton; if your puppy don't have to wear a cone over his head after his or her hip surgery, LovinPet dog pajamas can help puppy get around easier while still protecting his or her incision. SUPER STRETCHY: these are also super stretchy so that is the good thing if you're unsure about size the stretchiness makes them very easy to get on. EASY ON & OFF: 4-legs design with elastic waist, so this pet dog jumpsuit pajamas easy to put on and take off NICE PET CLOTHES: The color is nice and vibrant and the patterns on the pajamas are super adorable for puppy like yorkie, chihuahua, maltipoo,etc.