It's a fourshaft twill, which means every thread goes over two and under two, staggered to give diagonal lines. In a fairly balanced weave with a similar amount of warps and wefts per cm, that should result in a fabric that looks the same on both sides.
Well, guess what this cloth does not do?
Look the same on front and back.
There you go. Be surprised along with me! (Probably has to do something with the spin direction in relation to the twill direction...)