Mylar 5-Mil Resealable 5-Lb Stand-Up Bags with Zip Seal for Dehydrated Food Storage and Waterproof Protection AVAILABLE IN UNITS of a single bag, or multi-packs of 5, 10, 25, 50 or 100 bags. First used by NASA, Mylar bags are the gold standard for long-term food storage and emergency preparedness supplies PREPARE YOUR FAMILY for economic downturns, civil unrest and natural disasters such as hurricanes, earthquakes and more. Mylar bags let you store food, documents and medicines safely for years RESEALABLE ZIPPER CLOSURE removes the need for heat-sealing tools, and the stand-up design allows for easy filling and shelf storage. Access contents at any time, and refill or reuse bags as desired FOOD-GRADE stand-up bags are ideal for maintaining bulk supplies of grain, dried powdered foods, spices, salts and baking ingredients. Also protects valuables including medical supplies and ammunition UNBEATABLE BARRIER PROPERTIES protect contents from moisture, light, gas and aromas. Easily label bag contents and preparation dates on the outside with a permanent marker