Frisco Cozy Fleece ONESIE PJ Pajama Green and Black plaid fleece flannel check pattern Pet Apparel for dogs. New with tags, size XL Maximize your pet's coziness with these PJs you and your pet will both adore. They're made of soft, thick polyester, and they fit snugly for your pet's comfort. 100% soft, thick polyester fleece to maximize your pet's coziness. Body: Measure the base of the neck to the base of the tail. Neck: Measure around your dog's neck leaving room for two fingers. Chest: Measure your dog's chest around the widest part X-LARGE 20 inches 17 inches 27 inches 25-45 lbs