Adorable solid red thermal pajamas with faux back flap and decorative buttons. Contrast white top stitch, dyed to match rib trim at neck and sleeves. Keeps pet hair off the bed! Made of cotton/polyester blend with velcro closure. Machine washable. Sizing Information: X-Small - 7-9" Length, 14" Girth, dogs 4-12 lbs. Small - 10-13" Length, 18" Girth, dogs 12-20 lbs. Medium - 14-17" Length, 22" Girth, dogs 20-35 lbs. Large - 18-21" Length, 26" Girth, dogs 35-65 lbs. Measuring Guide: Back: Measure length of pet's back from the base of the neck to the base of the tail. Neck: Measure the circumference of the pet's neck for a snug, not tight fit. Chest Girth: Measure the broadest part of the chest and add 2" for ideal fit. Note: If the dog has a stout build, select one size larger.