DISHWASHER SAFE & EASY TO CLEAN: Thanks to innovative upgrades to materials, our reusable food storage bags are dishwasher safe. However, please skip high-temperature functions such as the dishwasher's drying to extend the lifespan of the bag, you can put the bags on the top of a mug or cup to air dry.FOOD GRADE MATERIAL & FREEZER SAFE: Our reusable food storage bags are made of food-grade PEVA material, BPA FREE, PVC-free, lead-free and chloride-free. These reusable freezer bags are heat and cold resistant and makes the bag freezer safe temperature resistant-22℉~120℉(-30℃～+60℃). They prevent your food from freezer burn while preserving its flavor, perfect for freezing meat, fish, shrimp, and vegetables.LEAKPROOF & AIRTIGHT: These reusable lunch bags will give you absolute confidence to hold liquids or sauces. Because they are 100% leakproof. The double-seal design keeps liquids and air locked inside. At the same time, the airtight function of reusable food bags will keep food fresh longer. Even small children can easily open and close the bag.ECO FRIENDLY & ECONOMICAL: Our reusable gallon bags are reusable and recyclable, one of our bags can reduce the use of 450 single-use plastic bags, which has a significant environmental impact. At the same time, the reusable bag is also a more economical option for your household.MUTI-USE & 100% SATISFACTION: 3 reusable gallon bags are great for marinating meat, frozen food, office supplies, 4 reusable sandwich bags are perfect containers for sandwiches, lunches, stationery, travel toiletries, 3 reusable snack bags are perfect for storing snacks and fruits, baby food, family organization. If you are not 100% satisfied with your reusable bags, feel free to contact us for solutions.