X-ray pole figures were obtained for samples of lightly plasticised poly(vinyl chloride) which had been subjected to monoaxial (draw ratio 2) and biaxial (draw ratio 2 x 2) orientation at 70 degrees C. These pole figures confirmed the presence of crystallite orientation and suggested the presence of two distributions of crystallites, having the a- and c-axes of the unit cell, respectively, predominantly in the stretch direction. The relative amount of c-axis orientation was greater in the biaxially stretched sheet, possibly at least partly owing to the presence of mesomorphous structure.