Compostable courier bags, also known as compostable shipping bags or mailer bags, are environmentally friendly alternatives to traditional plastic courier bags or poly mailers. These bags are designed for shipping and delivering items while being made from materials that can naturally break down and degrade in composting systems. It's important to note that the compostability of these bags may depend on factors such as the specific materials used and the conditions in which they are disposed of. To ensure that courier bags are genuinely compostable, look for certifications like the "BPI Certified Compostable" logo or similar certifications. Additionally, businesses and consumers should follow local recycling and composting guidelines and facilities for proper disposal to maximize the environmental benefits of compostable courier bags.Â