Vintage Aqua midi pencil skirt

High quality vintage knee length aqua colour skirt from petites unlimited, marked size 6, 75%polyester 25% rayon, made in Canada. Zipper and button on the back. Small slit at the back of legs. In perfect condition. Measurements Waist 26.5" Hips 37" Length 23" Im a size 26/27 and 5ft3. It fits but feels a little tight as the skirt doesnt have stretch. Would best fit a size 25/26 imo.