What a great birthday Bandana for your dogs wonderful day!! Buffalo, Red Plaid, Dog Bandana for the birthday boy or Girl, clothes and accessories, medium weight cotton fabric. Black, red or white bow. Enter the name to be monogrammed in the note to seller if you’d like one. Custom orders are always welcome. The opening at the top is 1 3/4″. Sizes XS – Fits Neck Size 8” to 13” 6″ wide SMALL – Fits Neck Size 14″ to 16″ 7″ wide MEDIUM – Fits Neck Size 17″ to 22″ 9″ wide LARGE – Fits Neck Size 24″ to 30″ 12″ wide XLarge- Fits Neck Size 32-38 14″ wide Thank You for looking!! I will be happy to make one for your special pet. From a pet free and smoke free home.