Bimodal Extra heavy duty Clear Sack suitable to hold 20kg. 20” x 34” x 46” (508 x 864 x 1168mm)100 per pack. A bimodal sack is manufactured from a polymer that is at a molecular level stronger due to the structure of the raw material. Bimodal sacks are lighter in weight whilst retaining the strength. Smaller boxes reduce the amount of packaging used, thus reducing the carbon footprint.