150 Pieces Resealable Smell Proof Bags Foil Mylar Bags Aluminum Foil Bags Flat Metallic Mylar Foil Flat Food Storage Bagses, Holographic Color) 606 1 offer from $16.99 100 Pack Matte Black es Smell Proof Resealable Bags, Sealable Foil Packaging Bags 118 1 offer from $24.37This item: 25 Pieces 3 Sizes Mylar Food Storage Bags Aluminum Foil Bag Metallic Flat Heat Sealing Bags Storage Pouch for Coffee Tea B) $11.99 ($0.48/Count)Set of 60pcs mylar bags in size of 3 x 4in, excellent sealed performance to keep the inside food away from water and moisture, offering the max protection and prolong the freshness of foods. Great for storing snacks, coffee beans, candy, tea, nuts, dried flower, spices, jewelry, earphones. Great and value mylar bags!March 10, 2022 What is Mylar? Mylar is made up of plastic and aluminum foil. The material is very flexible and light weight. Ites in different sizes, thicknesses, and colors, and is used for a variety of products. The most popular is for food packaging, but it is also used in mylar balloons (the shiny ones), and in emergency blankets.