Kraft boxes are made up of special material that can be recycled after using it. It is made of a special kraft paper. The custom kraft boxes used today are one of the most popular and the most eco-friendly boxes. This is because of the type of materials that are used to create these boxes since they are extremely recyclable. The material used for the creation and processing of these boxes is actually obtained from the pinewood pulp. https://thecustomizeboxes.com/custom-printed-boxes/kraft-boxes