Flexible intermediate bulk container

A flexible intermediate bulk container (FIBC), builder's bag, jumbo bag, bulk bag, dumpy bag, super sack or a big bag is an industrial container made of flexible fabric that is designed for storing and transporting dry, flowable products, such as sand, fertilizer, and granules of plastic. FIBCs are most often made of thick woven strands of oriented polypropylene, either coated or uncoated, and normally measure around 45–48 inches (114–122 cm) in diameter and varies in height from 100 to 200 cm (39 to 79 inches).

Source: Wikipedia — Flexible intermediate bulk container (CC BY-SA 4.0)