The printed 1kg soy milk vertical spout bag is made of food-grade safety materials. It is non-toxic, tasteless and resistant to high and low temperatures, ensuring that the freshness and nutrition of the soy milk are perfectly preserved during transportation and storage. Vertical design with sealed mouthpiece, easy to open and close, seal immediately after drinking, which can effectively prevent oxidation and bacterial invasion. The patterns are clear and delicate, and the colors are bright and long-lasting. 1kg large capacity design to meet the needs of home, office or outdoor activities.