A disposable, flexible locking restraint having a base and first and second straps integrally molded of a dry flexible plastic is provided. During use, toothed portion of the straps engage toothed portions of associated pawls to provide for unidirectional travel of the straps through the base. For increased security, pawl locks are provided on the base. Each pawl lock has first and second retainers to engage the pawl lock on the base, where the first retainer is spaced from the second retainer along a length of the pawl lock. When the first retainer retains the pawl locks in the base, the pawls have sufficient freedom of movement to allow unidirectional movement of the straps through the base, and when the pawl locks are depressed such that the second retainer retains each pawl lock in its respective lock aperture, the pawl lock engages the pawl and presses the pawl against the strap, preventing further travel of the strap.