I am on the short side and find that the full is too long and bunches in my boot which can be painful. I try to pull them up but the it is tight around my calf. If you are tall I would say that the full would be great but if not, consider the 3/4 length. Aside from that, their quality is great and I highly recommend them.
Thanks for the input. I bought the cw-x and love them, as they work! I feel less tired at the end of the day. I got the 3/4 length, but they move a little.