I made this using waffle fabric purchased here and a pattern from Kimie Sato Knit Sewing. The length has been shortened slightly. (I am 162 cm tall) The waist elastic is 63 cm long. The fabric is a bit thick, and the exact material is unknown. Because it's a thick fabric, it adds a bit of volume, but it feels warm. A tag has been sewn on to make it easy to tell which side is the back.