I design for children's clothing sizes 5T and up and wondered what sizes are available?
Thank you very much for the question. For children we currently offer youth sizes K4-K12. While I don't have any specific information to share as to when additional sizes might become available, we are always working to offer more options to our content creators and our customers. We will be sure to let our content creators know as soon as any new sizes are available.
Officially there are no toddler sizes.
Unofficially, based on some product reviews I’ve seen, the premium t-shirts in any size smaller than extra large are perfect for small kids. It’s the reason why many of the premium shirts I sell are returned by the customer. I used to be able to warn the customer in my listing to “order a size up” to avoid the issue, but Merch decided that was against the rules. So, I guess they’d rather have the returns.