I do not sell these printed mats anymore, but you will need a mat for every Keola® workout. Here is one for you to consider with many beautiful colors to choose from. I recommend 6mm. It's not too thin or too thick. Both create challenges based on the variety of movement included in Keola®.
When looking, search for something that holds its shape well... meaning it doesn't thin easily when pinched or under the pressure of your weight. Though I don't use them anymore, this brand has been faithful for me with that in the past.
If you are eco-conscious, here's an option that also includes alignment lines, which are great body placement helps for beginners.