SC Johnson a family company. Unbeatable freezer protection (Compared to other freezer seal top bags). Grip 'n Seal Technology. Microwave safe. Made with wind power. Strong enough to use again. Fill, use, repeat. See bottom for details. A family company since 1886. Fisk Johnson. Environmental Facts: Bags are recyclable when clean and dry at drop-off bins at participating retailers. Please recycle this paperboard carton. Defrost & Reheat - Vent bag 1. Ziploc Bags are reusable after hand-washing and drying! We do not recommend reusing Ziploc bags after storing raw meat, fish, eggs, or potentially allergy triggering foods.