A cigarette comprising: a lighting end (14; 514) and a mouth end (18; 518); a mouth end piece segment disposed at the mouth end; an aerosol-generation system disposed between the lighting end (14; 514) and the mouth end piece segment, the aerosol-generation system including a heat generation segment disposed at the lighting end (14; 514) having a length including a heat source configured to be activated by ignition of the lighting end (14; 514) and an insulation layer of flame-retardant material disposed around the heat source; an aerosol-generating segment incorporating aerosol-forming material, said aerosol-generating segment having a length and being disposed between, but physically separate from, each of the heat generation segment and the mouth end (18; 518), wherein the aerosol-generating segment includes a substrate (55; 555) comprising a piece of outer wrapping material oriented to provide an overwrap (i) around the aerosol-generating segment for at least a portion of its length, and (ii) around the heat generation segment for the length of that segment, those segments (51, 515) being connected together by the overwrap to provide a cigarette rod; and the mouth end piece segment being connected to the cigarette rod using tipping material, characterized in that the substrate (55; 555) comprises a central core, a first outer layer of a glycerin-treated fabric, coaxially disposed around the core, an intermediate layer coaxially disposed around the first outer layer, the intermediate layer including aromatic tobacco paper, and a second outer layer of a glycerin-treated fabric, coaxially disposed around the intermediate layer, wherein at least a portion of the first, intermediate, and second layers is stitch-bonded together with a substrate heat-conductive material. a lighting end (14; 514) and a mouth end (18; 518); a mouth end piece segment disposed at the mouth end; an aerosol-generation system disposed between the lighting end (14; 514) and the mouth end piece segment, the aerosol-generation system including a heat generation segment disposed at the lighting end (14; 514) having a length including a heat source configured to be activated by ignition of the lighting end (14; 514) and an insulation layer of flame-retardant material disposed around the heat source; an aerosol-generating segment incorporating aerosol-forming material, said aerosol-generating segment having a length and being disposed between, but physically separate from, each of the heat generation segment and the mouth end (18; 518), wherein the aerosol-generating segment includes a substrate (55; 555) comprising a piece of outer wrapping material oriented to provide an overwrap (i) around the aerosol-generating segment for at least a portion of its length, and (ii) around the heat generation segment for the length of that segment, those segments (51, 515) being connected together by the overwrap to provide a cigarette rod; and the mouth end piece segment being connected to the cigarette rod using tipping material, characterized in that the substrate (55; 555) comprises a central core, a first outer layer of a glycerin-treated fabric, coaxially disposed around the core, an intermediate layer coaxially disposed around the first outer layer, the intermediate layer including aromatic tobacco paper, and a second outer layer of a glycerin-treated fabric, coaxially disposed around the intermediate layer, wherein at least a portion of the first, intermediate, and second layers is stitch-bonded together with a substrate heat-conductive material.