A liner comprising: three stacked multilayer components (52, 56, 80) thermally laminated together to form a composite liner, the liner having an induction heat sealable lower layer for sealing to a rim of a container and a pull tab for ease of removal of the liner from the rim of the container, the three multilayer components comprising: an upper multilayer component comprising an upper support layer and a lower heat bondable polyolefin layer; and a lower multilayer component comprising an upper heat bondable polyolefin layer, the lower induction heat sealable layer, and an inductive heating layer therebetween; a folded insert comprising upper and lower multilayer insert portions joined at a fold line, each insert portion comprising an outer heat bondable polyolefin layer and an inner heat resistant separable layer wherein in a folded position the inner separable layers of the insert portions are facing one another and resist bonding by thermal lamination and induction heating to form the pull tab in the liner, the liner being formed by a method comprising: in a first area of the liner the upper multilayer component and lower multilayer component polyolefin layers (54, 58) are disposed facing one another and are thermally laminated by application of heat and pressure to form an integral polyolefin layer of a non-separable first liner portion; and in a second area of the liner the polyolefin layers (54, 58) of the upper and lower insert portions are disposed facing the upper multilayer component and lower multilayer component polyolefin layers (54, 58) respectively and thermally laminated, by application of heat and pressure, to form integral polyolefin layers (62, 64) in a second liner portion having the pull tab. three stacked multilayer components (52, 56, 80) thermally laminated together to form a composite liner, the liner having an induction heat sealable lower layer for sealing to a rim of a container and a pull tab for ease of removal of the liner from the rim of the container, the three multilayer components comprising: an upper multilayer component comprising an upper support layer and a lower heat bondable polyolefin layer; and a lower multilayer component comprising an upper heat bondable polyolefin layer, the lower induction heat sealable layer, and an inductive heating layer therebetween; a folded insert comprising upper and lower multilayer insert portions joined at a fold line, each insert portion comprising an outer heat bondable polyolefin layer and an inner heat resistant separable layer wherein in a folded position the inner separable layers of the insert portions are facing one another and resist bonding by thermal lamination and induction heating to form the pull tab in the liner, an upper multilayer component comprising an upper support layer and a lower heat bondable polyolefin layer; and a lower multilayer component comprising an upper heat bondable polyolefin layer, the lower induction heat sealable layer, and an inductive heating layer therebetween; a folded insert comprising upper and lower multilayer insert portions joined at a fold line, each insert portion comprising an outer heat bondable polyolefin layer and an inner heat resistant separable layer wherein in a folded position the inner separable layers of the insert portions are facing one another and resist bonding by thermal lamination and induction heating to form the pull tab in the liner, the liner being formed by a method comprising: in a first area of the liner the upper multilayer component and lower multilayer component polyolefin layers (54, 58) are disposed facing one another and are thermally laminated by application of heat and pressure to form an integral polyolefin layer of a non-separable first liner portion; and in a second area of the liner the polyolefin layers (54, 58) of the upper and lower insert portions are disposed facing the upper multilayer component and lower multilayer component polyolefin layers (54, 58) respectively and thermally laminated, by application of heat and pressure, to form integral polyolefin layers (62, 64) in a second liner portion having the pull tab. in a first area of the liner the upper multilayer component and lower multilayer component polyolefin layers (54, 58) are disposed facing one another and are thermally laminated by application of heat and pressure to form an integral polyolefin layer of a non-separable first liner portion; and in a second area of the liner the polyolefin layers (54, 58) of the upper and lower insert portions are disposed facing the upper multilayer component and lower multilayer component polyolefin layers (54, 58) respectively and thermally laminated, by application of heat and pressure, to form integral polyolefin layers (62, 64) in a second liner portion having the pull tab.