An endovascular prosthesis includes a tubular body of a graft material, the tubular body defining a lumen therethrough； a plurality of stents coupled to the tubular body； at least one circumferentially constraining suture； and a trigger wire extending longitudinally along the tubular body. In a reduced diameter configuration a first end of the circumferentially constraining suture is attached to one of the plurality of stents, the circumferentially constraining suture extends circumferentially around a complete circumference of the tubular body, and a loop of the circumferentially constraining suture disposed opposite the first end is coupled to the trigger wire. In a deployed configuration the trigger wire is disengaged from the loop such that the stent radially expands and the circumferentially constraining suture extends only partially around the circumference of the tubular body. The prosthesis in the reduced diameter configuration has a diameter about 40 to 50 percent larger than in a delivery configuration wherein prosthesis is disposed within a sleeve of a delivery catheter
