I remember these were all the rage. I remember having a pair of purple/orange checked Oxford Bags (a form of loose-fitting trousers that originated from Oxford University in the 1920s). I wore mine with a bottle-green leather jacket, which were all the rage then. It came to the hips and had two slant pockets a zip in the middle and three seams down the front on each side. This must have been about 1975.