Compost Sure Green contains a mix of coarse peat moss and chopped hemp stalk. It has been specially formulated for use as a bulking material in all Sun-Mar waterless composting toilets. Compost Sure Green facilitates composting by mixing in the waste to present more surface area for breakdown. It holds moisture to help maintain the optimal moisture content in the compost. This compost also ensures good porosity so that excess liquid can drain easily, leaving behind free air for oxygen.