Beyond food, these liners are also great for shipping flowers, medications, and temperature-sensitive items. Their reflective foil barrier helps preserve freshness and reduce energy transfer, making them a smart, sustainable solution for insulated shipping. Keep your temperature-sensitive items fresh and secure with our insulated thermal box liners. Made from durable, food-safe materials with a reflective foil surface and bubble padding, these liners are ideal for shipping hot or cold items such as frozen foods, prepared meals, groceries, pharmaceuticals, flowers, and more. Each liner folds flat for compact storage, taking up far less space than bulky polystyrene foam coolers. Lightweight yet effective, these thermal liners help reduce air freight and storage costs while maintaining reliable temperature control during transit. Designed for easy use—just line your existing corrugated box, add your items and refrigerants, seal, and ship.