Generally, tartan hose are custom made to fit the wearer and to match the colors of the kilt. That is the main reason they are so expensive. I got mine second hand at an excellent price, but the original owner posted various measurements so I could be sure they would fit. These included the length of the foot, the height from the heel to the top of the cuff and the calf circumference they were designed for. When folded the pattern continues onto the cuff. Here is a close-up showing what MoR is talking about.



At least on mine, the outside of the top, that is behind the cuff is solid, while the argyle pattern is on the inside of the top. There is also a constriction where the fold for the cuff occurs. I don't have a picture, but I can take one this evening if anyone is interested. There is quite a bit of engineering in a pair of tartan hose.