These one-piece gusseted insulated box liners are made with FDA-compliant materials and set up quickly and easily to create your own insulated shipping container. Measuring 18 x 18 x 18 with an assembled product length of 24.5 inches and width of 18.25 inches these liners can be used with cold packs to ensure your products maintain their quality taste texture and color during transit. Durable and versatile these liners are the perfect solution for protecting your temperature-sensitive items.