We offer 2 types of courier bags, Polycell Courier Bags and Supra brand bags. Both offer a lightweight, versatile packing solution for non-fragile items. The Supra courier bags are plain (ie. no branding on bags) and have thicker multi-layer plastic film which makes them super tough. These economical post bags are high-strength, tear-resistant and water-resistant providing protection from the elements. The tamper-resistant, self-seal closure and opaque finish keeps the contents of the bag secure.