Double Joints
The EXP skeleton (Zelex) is described as an advanced version of the EVO skeleton and offers, among other features, a movable neck, double elbow joints, and even better hip movement. These additional joints (also available in new EVO skeletons or as optional add-ons) are particularly useful when you want to bend the arms more naturally, position them closer to the body, or incorporate them into more realistic poses. This is a good example of how “greater mobility” often consists of many small mechanical improvements rather than just being a general marketing term. In everyday use, this can make a noticeable difference when taking photos, changing clothes, or adopting certain postures. At the same time, the EXP skeleton is not widely available but is described as an exclusive option by Zelex. The term is useful because it refers to a very specific, technically relevant detail that is easily overlooked when making a purchase decision. The EVO skeleton is widely available, and dual joints are offered by select premium manufacturers.
What should you look out for?
A common misconception is that arm articulation is the same across all high-quality skeletons. Double elbow joints are a special feature and not standard. In addition, you should always check whether the model you want even supports this type of skeleton.