The size of this hat is suitable for most dogs, in addition to the use of warmth, it also has a decorative effect. Choosing the right size not only requires measuring your baby's weight, but the most important thing is measuring your baby's weight. If you have any purchase issues, please contact us to provide you with the best solution. Product size: Free size (cap buckle adjustable 12-18cm), product material: sponge filling. Black with yellow ears, add color to see the visual effect, cap buckle elastic band design, you can adjust the length.