In general: Size two can fit children ages 1-3, size four can fit children ages 3-5, and so on and so forth. Please size up or down according to your child's size.
We recommend washing in cold water, on the delicate cycle. Tumble dry low heat.
I don't actually have this shirt, but bravo for using a toddler with Trisomy 21 in your advertising. Pur daughter has Down Syndrome and we love seeing more inclusion in advertising! Awesome job!