As Flexitank called one for the transportation of certain liquids tank containers for truck trailers and ISO containers . Thus, liquids can be (both chemical substances and foodstuffs) transport, not covered by the Dangerous Goods Ordinance fall. A flexible tank is a bag-like container made ​​of durable polypropylene fabric. The capacity is up to 28,000 liters. Through a valve of the tank is filled and vented through a vent valve. The internal design of the tank is made of several layers of film. The inner layer can be configured differently in order to ensure compatibility with the contents. For transport on the truck-trailer anti-skid mat is laid to prevent damage to the tank through the vehicle interior flexibility and at the same time securing loads to ensure. With straps to the Flexitank is secured. Due to the weight of flexitanks the maximum load is increased, which is reduced compared to conventional types of packaging. By using a Flexi tanks to increase the potential value of the vehicles, since a truck-trailer can also be converted into a tank. Added to this is a better utilization of the truck and an avoidance of empty runs thus decreasing the burden on the transport network. In this regard, allowing the Flexitank an improved CO 2 footprint. Because of the flexible tank is disposable, eliminating the cleaning and the return of the empty container. Flexi Tank is food-safe and recyclable.