Stasher bag is the world’s first fully functional, self-sealing, non-plastic bag. The award-winning Stasher bag was created in response to the profound need for a healthy alternative to plastic storage bags and containers. Features the innovative air-tight, pinch-lock seal to keep food fresh; ideal storage, marinade, and sous vide bag. 100% pure platinum food-grade silicone is safe for the freezer, microwave, dishwasher and boiling water. Unlike plastic bags, Stasher bags contain no petroleum, no PVC, and no latex.