Plastic bags are bad for your budget and the environment. Fortunately, there's a reusable, eco-friendly alternative that keeps food fresh and prevents waste. Meet the Stasher bag, the world's first fully functional, self-sealing, non-plastic bag. The Stasher bag, which comes in multiple sizes, is made of 100 percent pure platinum food-grade silicone. It's freezer-safe, microwave-safe, dishwasher-safe and you can even use it in boiling water.