Sizes: XX: Back 9.1", Bust 9.1", Neck 6.3"; XS: Back 11", Bust 10.2", Neck 7.9"; S: Back 12.6", Bust 11.8", Neck 8.7". Please measure your cat’s height before choosing a size, so that you can choose a size that fits your cat. Bouncey Unique design, wearing this outfit attracts a lot of watch out on the street. You will need to measure the length of your cat’s bust, neck and back (it’s best to choose a sweater size based on your pet’s bust) Items Included: 1 x Thermal Cat Sweater We only sell pet clothes, not other items in the pictures. Due to the difference between different monitors, the images may not reflect the actual color of the item. Due to manual measurement, please allow slight errors in size.