Baffles are pieces of fabric that are sewn to the inside corners of a bag to maintain its cube shape after filling. The baffles have holes that allow the product to flow freely through them. The baffles also prevent the bag from bulging, which makes the bag stand up straight and in turn allows the FIBC bags to be more efficient in their use of space.  Net and tie baffles are another type of baffle option, but not as common.