BioBag USA makes all kinds of alternative “plastic” bags. Why do we call them alternative? Well, they are made from Mater-Bi™, not plastic. Mater-Bi™ is the first completely biodegradable and compostable bio-polymer ever invented. It is made from GMO free corn starch, vegetable oil and other renewable resources of plant origin. BioBags - Changing the world without changing the planet!