Secure Your Temperature Sensitive Shipment With Our Insulated Boxes. Available In Variety Of Sizes!Insulated shipping containers are boxes for highly sensitive products such as foods, biologic material, pharmaceuticals, or anything where high-temperature sensitive shipment could cause shipping difficulties. Our insulated containers are expanded polystyrene (aka Styrofoam) coolers. These provide excellent insulation (R value) for longer transit time shipments. Ship safely and maintain the insulation and integrity of your products with our lightweight, reusable, and recyclable insulated shipping boxes.