Disclosed is a stent-graft (10, 10a, 10b, 20, 30, 30a, 40) which is a repair material for conduits of a living body, such as blood vessels, e.g., aortas, and the tracheas. The stent-graft has a tubular shape formed by weaving a warp (14) formed from a resinous material and a weft (12, 42) including a filament formed from at least one of a shape memory resin, a shape memory alloy, and a superelastic metal. The weft (12, 42), which is woven along the circumferential direction, and / or the warp (14), which is woven along the axial direction, is constituted of either a yarn which is swollen by bodily fluid or a yarn having a coating (16) which is swollen by bodily fluid.