A stent assembly comprises a stent formed by a network of struts, the stent having an internal surface and an external surface; and a porous fabric material covering at least a portion of at least one of the internal surface and the external surface, and bonded to the stent by a polymer binder that mediates between the struts and the fabric material to bind therebetween. At least 90% of the combined lengths of the struts in a given region are coated with the polymer binder; at least 70%, by area, of fabric disposed in a given region and up to 0.5 mm from a nearest respective strut, is rendered non-porous by the polymer binder within pores of the fabric; at least 70%, by area, of fabric disposed in a given region at least 3 mm from a nearest strut, has pores free of the polymer binder.