Ziploc Gallon Freezer Bags help you to lock in and preserve the flavor of fresh food items, prepared favorites, and snacks. Durable plastic construction makes these gallon bags long-lasting and reusable when used as directed, and the patented stand-up bottom makes them remarkably easy to fill and stand up straight. Once these reusable food storage bags are filled, Grip n’ Seal technology makes them easy to close securely, while also helping to lock out freezer burn. Whether it’s soups, sauces or stews, filling, closing and freezing just go a whole lot easier. These reusable Freezer Bags are safe to use in the microwave and are BPA free.