Active X Short are made from a ventilated spacer material. This model have one circular strap on the thigh section and one on the calf section. The straps can be positioned individually. All straps have a plastic D-ring. This short version is available in a tube version and a wrap-around version. Both have rigid uprights with flexion- and extensions stops that can be changed for different range of motion settings. Joint is pre-set in 10 degrees of flexion. Other flexion/extensionstops are included in the package.