If You Care Certified Recycled Trash Bags are made from 89% post consumer recycled materials. These bags reduce carbon dioxide emissions, petroleum consumption and landfill waste.  Using 1Kg (2.2 lbs) of recycled polyethylene instead of producing new polyethylene plastic reduces carbon dioxide emissions by at least 1.5 Kg and crude oil consumption by 2 Liters. They are strong, yet supple.