Backpack made from corn waste, PLA material from corn starch. With drawstrings. The by-product of corn is called PLA. PLA (polyactic acid) is usually made from the sugars in cornstarch, cassava or sugar cane. PLA is 100% biodegradable, 100% compostable and CO2 neutral. To make a kind of plastic (PLA) from maize, the maize grains are mixed with sulfur dioxide in hot water, so that all components in this mixture develop again into starch, proteins and fibres. Yarn is made from the fibers and a bag can be developed from it. The logo of “bio bag compostable – made of corn” is printed on the bag as standard.