A high-performance tourniquet for use in rugged environments is disclosed. The tourniquet includes a strap which surrounds an extremity to apply pressure to the extremity. The strap is coupled with a latching mechanism which is operated via a handle to tighten the tourniquet. The ends of the tourniquet are configured to couple via a buckle system enabling a buckle frame to be passed over a buckle tongue. Alternatively, a quick-release stab-lock style fastener buckle may be used to couple the ends of the tourniquet. In either case the tourniquet is designed to enable a victim to personally don the tourniquet and apply the correct pressure. A handle protruding from the outer surface of the tourniquet may be rotated to tighten the tourniquet and apply pressure by moving the tourniquet ends relative to one another. The handle may be pulled outward to quickly undo the pressure.