Elf hats for cats and dogs made of a fleece in green with a red trim and pom pom with cute elf ears. Cute adorable elf hat has an elastic band under chin to provide a good fit. Perfect for Christmas photos or greeting house guests.. Comes in XXS to Large Bright Christmas Red Santa Hat https://www.etsy.com/listing/170829184 Fun Print Santa Hats https://www.etsy.com/listing/1623603647 Vintage Burgandy Color Santa Hat https://www.etsy.com/listing/1609428362 Large Hat Measures 18" around Base and 13" Tall Chin Strap 36" Medium Hat Measures 16" around Base and 11" Tall Chin Strap 23" Small Hat Measures 14" Around base and 9" Tall Chin Strap 17" XSmall Hat Measures 10" around 8" tall Chin Strap 12" Xxs 8" around 6" tall Chin strap 10" They have elastic strap and a cord keeper very adjustable Chin strap measurements are elastic not stretched at its largest the cord keep can be slid to make hat smaller. If you need more help in size I can suggest based a weight or head circumference. Providing a head circumference effects elastic band only. Pet safety is the pet owners responsibility. Always supervise pets when wearing accessories. Each item is custom made for you when you order we are not able to take items back in exchange or returns, so please make sure to check sizing and reach out if you have any questions we are happy to help and answer quickly. Disclosure : Pet safety is pet parent responsibility check frequently for normal wear and tear. Harnesses, collars, leashes, clothing, and accessories are designed for supervised use only. Leaving a pet unattended or caged while wearing any of the following (collars, harnesses, leashes, bow ties, clothing, and accessories) may cause injury. It is the responsibility of the pet owner to determine the suitability of their individual pet's situation. The customer and pet owner accepts all liability, responsibility with this disclosure.