SC Johnson - A family company. Power Shield technology. Stronger (Bag film tested using ASTM D1709 Dart Drop and ASTM D2582 PPT.) than Hefty on punctures & tears. Stand & fill. Microwave safe. Strong enough to use again. Stand & fill bottom for easy organization. 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. Bags made with wind power.