Last time I used a cotton polyester velour. It was soft but sturdy. This time I had a cotton jersey. It is soft, not so firm and very stretchy. It was definitely the WRONG fabric for this pattern. Due to the stretchynes of the fabric it became way too big. I modefyed it as you can see in the above photo. I actually did this twice until I was happy with the fit.
Of course I know that the fabric makes or brakes a pattern. Still I guess I did not give this one enough thought. Happily it was a design that was easy to modefy. In adition to downsizing I also added a casing in the bottom.