These compostable bags are made from an eco-friendly material, Mater-Bi. BioBags are GMO free and will compost as naturally as the fruit and vegetable scraps you put inside. These green kitchen bags make it easier to collect your kitchen scraps for home composting – a great alternative to plastic bags! BioBags meet the ASTM D6400 requirements, which is the gold standard for compostable plastic. Box of 50 bags, 6-liter capacity.