A laminate of a reflective foil of metallised polyester and a heat-softenable polyethylene film is perforated to allow transmission of water vapour and is used as a thermal covering or jacket for animals and humans. The laminate may form a large sheet overprinted with advisory shapes for cutting out to wrap specified body parts. The laminate may also be used as a support for wound dressing with an overprinted camouflage pattern. The laminate may be secured to itself or other surfaces such as under/over blankets or under garments by heat bonding. The reflective metallised film reflects back the body's own heat which is advantageous in wound/burn healing and incorporates a method for visualising the underlying wound/burn.