What is the term for leg restraints commonly used to limit the movement of a subject?

Leg irons are a specific type of leg restraint that are designed to limit the movement of an individual's legs. They are typically made of metal and consist of a pair of leg cuffs connected by a chain, preventing the wearer from running or moving freely. This restraint is often used in correctional settings and during transport to ensure safety and control over individuals who may pose a risk of flight or harm to themselves or others.

The other terms provided, such as foot ties, ankle cuffs, and wrist chains, do not accurately describe the standardized leg restraints used in correctional environments. Foot ties might refer to a less formal method of securing feet, while ankle cuffs can be more commonly associated with lighter, softer restraints or are not generally recognized as a distinct form of hardware like leg irons. Wrist chains specifically refer to restraints used on the arms, not the legs, indicating that leg irons are the appropriate and standardized terminology for the type of leg restraints in question.