This BTS Jin - Super Tuna Inspired Pet Bandana is a great gift for a fellow Army pet or your pet! We use 1” elastic. All measurements are for the pet's MAX neck size. If your pet is between sizes or fluffy, size up or chooses a custom order. If the size of your pet is sold out message us! We will message you in 1-3 business days. The purple and blue will vary. Just a little FYI, but the stars, Super Tuna, bubbles, BTS Logo, etc will vary. Lola is wearing a custom size. Please don't place the bandana in the washing machine, please hand wash. If you need a custom size, please don't hesitate to contact me through Etsy or email us at mooddaydreaming@gmail.com.