8x3x20 1.25mil Polyethylene Side Gusseted Bags 1000/cs. Side Gusset Bags are your basic plastic foodservice bags. These gusseted bags are made from virgin polyethylene and comply with FDA requirements for food applications. Our bags can hold everything from small parts to all types of food items. They can also be heat-sealed to provide security and/or retain freshness. Millions of bags are in stock and ready to be shipped at a moments notice. Made from seamless tubing and are bottom sealed for extra strength.