Abstract: The present invention relates to a self-locking strap assembly. The assembly includes a buckle having an outer concave surface and a passageway. A strap is secured to the buckle at a first position and is adapted to be inserted into the passageway at a second position. A retainer is coupled to the buckle and adapted to engage the strap such that movement in one direction of the strap in the passageway relative to the buckle is inhibited.