Originally the Aliens in AVP could have had another leg joint as in the previous two Alien films. This "chicken" style pair of legs was produced for the production but ultimately not used. They have wires down the length of each toe and a strong support up to a shoe sole cast into the foam latex, each shows wear on the toe ends and around the top where the upper part was pulled on for wearing. There are buttons at the top opening for attaching to the rest of the costume.
