Abstract: Improved merchandise bag with reinforced bag wall is formed of thinner than normal extruded film with a thickened center section. For merchandise bags, the thickened center section provides a stronger bag bottom and a stronger area for the formation of bag handles. Handle bags include soft loop, round die cut oval die cut, wave top, patch and rigid handles. For T-shirt style bags, the thinner plastic in the gusset and handle areas is made up for by multiple layers of film in these regions. T-shirt bags may have single, triple or folded gussets providing as many as eight layers of film in these regions. The thickened center section will substantially match the thickness of the gusseted areas and provide for a more easily stacked bag. The bags are formed of mono layer or multi-layer film and at least a portion of the bag walls is corona treated to improve adhesion.