Food Grade Material Made of food grade PEVA material and certified to ensure the reusable food storage bags are BPA free. Free of silicone or plastic odor, durable, and resistant to damage. Ensures safety for food contact and prevents flavor transfer. Leakproof & Easy Seal Features a zip lock sealing design that is waterproof, leak-proof, and easy to open and close. Provides strong sealing performance, keeps food fresh, and prevents cross-contamination of odors. Ideal for food storage and preservation. Expandable Bottom Designed with a widened bottom to increase capacity, allowing the bag to stand upright when full. Helps prevent spills and keeps refrigerator storage organized. Easy to Label Includes a writeable area for labeling with a non-permanent marker. Easily mark dates, food names, or other details to identify contents such as snacks, fruits, leftovers, or lunch items. Freezer Safe & Dishwasher Safe Protects against freezer burn and keeps food fresh. Suitable for freezing meat, poultry, fish, fruits, vegetables, and produce. Made with upgraded material safe for top rack dishwasher use under 60C/140F. Hand washing and air drying are recommended. Not suitable for microwave use.