An endovascular prosthesis comprising: a tubular body of a graft material, the tubular body defining a lumen therethrough; a plurality of stents coupled to the tubular body; a trigger wire; and at least one circumferentially constraining suture, the circumferentially constraining suture comprising, a first thread (132, 232) coupled at a first end (146, 246) to one of the plurality of stents and having a first thread loop (136, 236) disposed opposite the first end (146, 246), the first thread extending only partially around a circumference of the tubular body when the endovascular prosthesis is in a radially expanded configuration, and a second thread (134, 234) having a second thread loop (138, 238) interlocked with the first thread loop (136, 236), the second thread (134, 234) extending from the first thread loop (136, 236) around a remainder of the circumference of the tubular body, wherein the circumferentially constraining suture is configured such that pulling the second thread (134, 234) causes the first thread (132, 232) to circumferentially constrain the tubular body such that the tubular body constricts to a reduced diameter configuration; and wherein the trigger wire, inserted longitudinally along the tubular body and through the first loop (136, 236), retains the tubular body in the reduced diameter configuration. a tubular body of a graft material, the tubular body defining a lumen therethrough; a plurality of stents coupled to the tubular body; a trigger wire; and at least one circumferentially constraining suture, the circumferentially constraining suture comprising, a first thread (132, 232) coupled at a first end (146, 246) to one of the plurality of stents and having a first thread loop (136, 236) disposed opposite the first end (146, 246), the first thread extending only partially around a circumference of the tubular body when the endovascular prosthesis is in a radially expanded configuration, and a second thread (134, 234) having a second thread loop (138, 238) interlocked with the first thread loop (136, 236), the second thread (134, 234) extending from the first thread loop (136, 236) around a remainder of the circumference of the tubular body, a first thread (132, 232) coupled at a first end (146, 246) to one of the plurality of stents and having a first thread loop (136, 236) disposed opposite the first end (146, 246), the first thread extending only partially around a circumference of the tubular body when the endovascular prosthesis is in a radially expanded configuration, and a second thread (134, 234) having a second thread loop (138, 238) interlocked with the first thread loop (136, 236), the second thread (134, 234) extending from the first thread loop (136, 236) around a remainder of the circumference of the tubular body, wherein the circumferentially constraining suture is configured such that pulling the second thread (134, 234) causes the first thread (132, 232) to circumferentially constrain the tubular body such that the tubular body constricts to a reduced diameter configuration; and wherein the trigger wire, inserted longitudinally along the tubular body and through the first loop (136, 236), retains the tubular body in the reduced diameter configuration.