Really cool vintage skirt

Really cool vintage skirt from the brand Giorgia & John’s. The style of the skirt is riminescent of the brand Marithé + François Girbaud. The top fabric is a shiny dark grey with two long strings that you can wrap as you want around the skirt or around your waist. It has square beads at each end of the straps and on the front of the skirt. Under the first fabric, the skirt is lined with a smooth light brown fabric with tulle at the bottom. The skirt opens with a zipper on one side. The size indicated on the inside is 44, it correspond to a size M.