Material has two sides, and the side you like the best for the purpose you want is the right side, after all you pay for both sides. LOL, just teasing with you, but you can use both sides on any material. Generally speaking batiks don't have a right side, they are pretty much the same on both sides, unless the metallic is on one side, and not the other, but you can still use the non-metallic side. Just have fun, and be adventurous. I love working with batiks.