A family company. Power shield technology. Unbeatable protection. Stronger (Bag film tested using ASTMD1709 dart drop and ASTM 02582 PPT) than hefty on punctures & tears. Stand & fill. Microwave safe. Strong enough to use again. Fill, use, repeat. Stand & fill bottom for easy organization. Bags made with wind power. A family company since 1886. 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. Environmental facts. Bags are recyclable when clean and dry at drop-off bins at participating retailers. Please recycle this paperboard carton.