I love these! They run a little big. So when it says 12-18 month it will fit like a regular 18M in size. I used these for a fundraiser and the Dark Grey Heather matched up perfectly to the Anvil 980 Charcoal. They take htv very well and my customers were very pleased with them. I am sharing a picture of them on the box with the adult shirts. I circled them so you could see them, but you can tell the color was perfect!