MEASUREMENTS: I have this costume available in three different sizes: - for kittens with 8'' head circumference - for small cats with 10'' head circumference - for large cats / extra small dog breeds with 12'' head circumference CUSTOM OPTIONS We happily accept custom orders. If you would like a different size hat or in different color, please feel free to send us a message or use the "Custom Order" button in this listing. OWNER SUPERVISION REQUIRED AT ALL TIMES