Print for tshirt - mirror image?

I cannot print this for a tshirt? I do not see any options to change to mirror image, is it called anything else, help!!!

To print your cloud export it as PNG in Grab and Share section and then print it as any other image/picture.

Unfortunately I cannot help you on how to print it using your particular printer as I am not aware about the software you use for printing. I suggest you googling for that information or address it to your printer manufacturer for clarifications.