A simple long tartan skirt, that's all. Made in England (not Scotland, sorry) in the early 1970s, it's a machine washable (hoorah) acrylic wool mix, unlined, and featuring two huge patch pockets in front, which are just everything. Zip and button in back, and it's gathered in the back only, for an easy hip fit, for comfort and movement, and for the nice flat stomach look. It says size 9, but that's not a size so just see here:

Measurements: waist 24", hip 40", length 41"