IDL Packaging offers premium Insulated Boxes for Cold Shipping equipped with Thermal-Paper Liners, designed to maintain cold-chain integrity for refrigerated and frozen goods. Each insulated box for shipping frozen food measures 12" × 12" × 12", with an internal capacity of 3.6 gallons (9" × 9" × 9" - due to liners thickness). Our 1.5-inch thick paper-based liners keep contents cold for up to 48 hours when paired with ice packs. Constructed with a durable 40# kraft paper shell and multilayer cellulose wadding, these perishable food shipping boxes are entirely odorless, non-toxic, and plastic-free — proudly made in the USA. Unlike plastic insulators, our natural cold storage shipping boxes with paper liners efficiently absorb condensation, preventing moisture damage and reducing the risk of spoilage or microbial growth. This makes them not only practical but also safer for sensitive products. Sustainable and innovative, insulated packaging boxes for shipping are ideal for moving frozen food, pharmaceuticals, dairy, perishables, chocolates, fruits, and more. Our frozen meat shipping boxes outperform PET and bubble-foil liners, retaining temperatures up to six hours longer than foil bubble and three hours longer than PET. For unmatched protection and reliable performance, trust IDL Packaging’s insulated shipping solutions — the smart, sustainable choice for temperature-sensitive deliveries.