Double tissue casing

I've got this pattern from one of Japan websites. It's super easy to sew and only took me less than 1/2 hour to sew it! When you fold it into half, it looks like a purse. But unfortunately the fabric I'm using to make this is super stubborn to iron and therefore it doesn't sit nicely and bulky. I will make more of this with lightweight cotton fabrics! I just love Japan's crafts...!

Pattern from Studio-clip.com