FOOD GRADE MATERIAL & ECO-FRIENDLY: All of the reusable storage bags are BPA free with top quality They made of premium food-grade PEVA material, PVC-free, lead-free, chloride-free & phthalate free, safe and healthy It is eco-friendly and recyclable which will do no harm our environment when disposed or burned. What a good choice to save money and save our planet LEAK PROOF & STAND-UP DESIGN: Our reusable bags are designed with upgraded double closures that are super air-tight, leak-proof and hygienic , perfect for storing and preserving both solid food and liquid food, perfect for home and travel.The stand-up design extends its inner room of reusable lunch bags, you can store more food and never worry that the zipper would be ripped. FREEZER BAGS & EASY TO CLEAN : The reusable freezer bags can lock out freezer burn while keeping food fresh and full of taste, perfect for freezing meat, chicken, fish, fruits, and vegetables. It is easy to clean with the bottle brush and put the bags on the top of a mug or cup to air dry. Note: We recommend HAND-WASH, NOT safe in the dishwasher, microwave or oven. MULTIPLE SIZES TO MEET YOUR DAILY NEEDS: 15 Pack premium reusable food storage bags, we offer 3 different sizes for different needs. Including 5 reusable gallon bags ( 9.4x8.7x3 inch), 5 reusable sandwich bags ( 8.7x7.6x2.8 inch) and 5 snack bags ( 8.7x5.3x2 inch). MULTI PURPOSE: These reusable ziplock bags not only greatly store marinating meats, vegetables, fruit, meal prep, frozen foods, cereal, cookies and babies food, but also office supplies, cosmetics, jewelry make-up, stationery, travel accessories and more. The reusable storage bags are transparent, you can see the contents inside easy and quick.