Windows within the baffles allow product to flow into and seat in bag corners. Interior adjacent corner baffles, woven of PP fabric, form right angles inside the bag, improving stacking ability.
Atlas Group Americas: Baffle bag
The Baffle Bag from Atlas Bag (Skokie, IL) is designed to stay square, rather than round out, when filled. The idea is to maximize the cubic area within the bag, thus allowing the same amount of product as in a standard bulk bag while requiring less headroom.