IDL Packaging offers Insulated Shipping Boxes that come with EcoMax™ Thermal-Paper Liners. The cold-chain packaging ensures that refrigerated and frozen goods are shipped at optimal temperatures, arriving in top condition. The outer dimensions of each box are 12 ? 12 ? 12 inches, with an internal box+liner capacity of 3.6 gallons (9 ? 9 ? 9 inches) . Our 1.5-inch thick paper-based insulated liners keep products cold for up to 72 hours when used with ice packs. Each liner features a 40# kraft paper shell with a unique multilayer cellulose wadding inside. All materials are odorless, non-toxic, and plastic-free; proudly made in the USA. Our natural paper insulating liners are highly effective in absorbing condensation and protecting your products from moisture damage. They offer superior protection against spoiling and microbial growth, unlike plastic insulators. The innovative, fully sustainable paper-based packaging is the latest solution for shipping frozen food, pharmaceuticals, dairy products, perishables, chocolates, fruits, and more. Our insulated shipping boxes outperform PET and plastic bubble foil in temperature retention. They keep temperatures for up to 6 hours longer than foil bubble liners and up to 3 hours longer than PET liners. Trust in our superior technology for your temperature-sensitive shipping needs - the perfect insulated packing box for the ultimate thermal packaging performance.