Abstract: Thermos bottle liner comprising a liner in a generally rectangular configuration and positionable in a cylindrical configuration around the side wall of the bottle, the liner including in a rectangular configuration with long upper and lower edges and short parallel side edges, an interior layer of a pile type fabric, preferably terry cloth, the liner also including an exterior layer fabricated of a flexible plastic in a rectangular configuration with long upper and lower edges and short parallel side edges, the interior layer and exterior layer being off set laterally with respect to each other forming an outwardly exteriorly facing rectangular coupling area on the exterior face of the interior layer with a pile type fastener thereon and forming an inwardly facing rectangular area on the interior face of the exterior layer with a pile type fastener.