EnviroSac™ Ready Mix Bags offer unbeatable protection for concrete washout. There are multiple sizes of bags available. The bags offer a strength-tested and reliable design that minimizes spills during washout and easily handles excess concrete and wash down water. The cleanout procedure couldn’t be easier and neater. EnviroSac™ Ready Mix bags are great for dumping leftover concrete from the drum; the bags come in sizes of: 2 yard, 1 yard and 1/10 yard. They fold up making them convenient to store in the cab of your truck.