The 1x1.25m thermal blanket with air bubbles and aluminized reflective film in metallic polypropylene is a high-performance reflective thermal insulator for protection against heat and cold. Constructed with an inner layer of airtight bubble wrap coated on both sides with a highly reflective metallized film, it blocks thermal radiation by contact and convection. Its 1x1.25 meter format is easily cut and shaped. Ideal for lining thermal bags, lunchboxes, window screens, attics and insulating vans.