This adjustable chicken harnis a tried and tested chicken of all shapes and is sized to fit hens and ducks from 2-12kg, there are many sizes they will love this custom size.Breathable Nylon Material: Allows the rooster&39;s skin to breathe freely and has a certain elasticity, making the rooster and hen more comfortable.Stylish Bow Design; The chick drhas a beautiful bow on the front, which is very cute and becomes more fashionable for pets. more obviousEASY TO DO IT: Each garment features a 43" drawstring, making it easy to train chickens to walk, put on and take off. Avoid problems with donning and doffing and causing damage to your pet&39;s hair.Size: XS---- neck circumference 17cm, bust circumference 23-35cm, suitable for weight below 3kgS---- neck circumference 24cm, bust circumference 30-40cm, suitable for weight below 3-5kgM---- neck circumference 29cm, bust circumference 35-50cm, suitable for weight below 6-12kg