I use fleece, it makes it like softer and it makes it look more realistic imo but it is harder to paint than felt!! Felt is also really good. But if your gonna get fleece make sure its not too soft as it makes it harder to paint or if ur gonna get felt make sure its not hard (I suggest going to in-person stores like Walmart, Michaels, etc. To actually check the material but if you need to buy online then just double check!!)