Some products require a certain degree of ventilation or aeration to maintain their properties or not to decompose. This is the case with potatoes, carrots, or onions.
At other times, the passage of air inside the Big Bag favors the quality of products such as firewood, so that it remains dry and free of condensation.
Ventilated Big Bags have small openings in the form of vertical strips that allow air circulation and therefore favor the preservation of some products. To prevent these openings from closing or deforming, it is common to have a lockstitch on the edge to keep the fabric in its original shape.