Thank you for viewing! This is a handmade item. It's an easy-to-put-on type with a button closure on the back. Size: * Neck and chest measurements are double the flat measurement. Neck: 20cm Length (Back): 31cm Length (Front): 25cm Chest: 35cm Please allow for slight variations. It's knitted, so it has some stretch. Material: The mixed material label is missing, so it's unknown... The white yarn on the hem is 100% polyester. Hand washing is recommended. Thank you for your understanding that each item is carefully handmade. Please purchase with the understanding that it is a handmade item. Please be careful as excessive force may cause damage. There may be slight color differences depending on your monitor. Dog clothes, dog sweater, dog wear, beloved dog, walk, hand-knitted, for dogs, small dogs