Flexible Plastic and Paper Bags. Custom bags for promotional, industrial, and retail use. Available in reasonable quantities. Thousands of stock sizes for immediate shipment from regional warehouses or enjoy big dollar savings by made-on-demand manufacturing with production runs starting with just 1 pallet. Promotional shopping bags have even lower minimums.Plastic materials include polyethylene (low density, linear low density, and high density) as well as polypropylene, nylon, and various laminated materials. We supply Laylat Bags, Gusseted Bags, Wicketed Bags, Staple Packs, Poly Tubing, Center Fold Sheeting, Die Cut Bags, Fold Over Die Cuts, Patch Handles,