Flush Puppies doodie bags are 100% hydro-biodegradable and flushable. Yes, really… flushable. Made from Polyvinyl Alcohol (PVA) – a water soluble, eco-friendly, “green” alternative to plastic – Flush Puppies are specifically made to dispose of doggie doodie down the toilet. (It’s science, people – not voodoo!) Unlike plastic bags or other “biodegradable” bags, Flush Puppies actually biodegrade in water.