Durable and reliable packaging, which is designed for storing and transporting bulk materials. The entire range of kraft paper is made from 100% kraft pulp, which is highly durable and tear resistant. The valve on the bag makes it easy and quick to fill, and closes securely once full. As standard, open bags of the brand are made from sack kraft paper with a density of 65 g/m or 70 g/m in three or four layers. For the top layer, either brown or white kraft paper with a density of 70 g/m or 80 g can be used.