The invention relates to a stent graft, adapted for being inserted into a blood vessel, and to a method for forming a stent graft. The stent graft (1) comprises a first stent (2) comprising a plurality of first rings (4) being connected by at least one first connector, wherein the first stent (2) is arranged at least partly in an inner part of the stent graft (1), a second stent (3) comprising a plurality of second rings (5) being connected by at least one second connector, wherein the second stent (3) is arranged at least partly in an outer part of the stent graft (1), and a graft layer is arranged at least partly between the first stent (2) and the second stent (3), wherein the first stent (2) and the second stent (3) having each a predetermined length and the plurality of first rings (4) and the plurality of second rings (5) are axially arranged along the length such that the plurality of second rings (5) fit into the plurality of first rings (4). In this way, a possibility is provided to avoid the problem of integrity in connection with having as less as possible interaction between the first stent and the second stent and thus to minimize the risks of shear effects.
