
Shopping Bag
SOS Bag (Self-Opening Sack)
SOS bags are made from kraft paper (typically 30# to 57#) with pre-glued accordion-style side gussets and a rectangular flat bottom. When you snap the top open, the gussets expand and the bottom locks into place, allowing the bag to stand upright on its own. The flat bottom distributes weight evenly, and the open top allows fast filling.
Originally invented in the 1870s, SOS bags remain the standard paper bag for grocery stores, delis, bakeries, and food service.
