These are fabrics with a combination of finer warp and coarser weft and all with high quality open-end yarns. This makes the fabrics ideal for trousers that are perfect office wear in a range of comfort cottons that are wrinkle free. 8.3 Oz; 20 x 12 O.E.; 3/1 Left Hand Twill 8.5 Oz; 20 x 10 O.E.; 3/1 Left Hand Twill 8.5 Oz; 16 x 12 O.E.; 3/1 Left Hand Twill 9.6 Oz; 16 x 12 O.E.; 3/1 Left Hand Twill