Sources:
http://www.sustainablepackaging.org/
Photo:

UniKeep™ and EnvyPak™ are trademarks of UniKeep LLC, a Univenture company. Univenture is a member of the Sustainable Packaging Coalition.The Sustainable Packaging Coalition is an industry working group inspired by cradle to cradle principles and dedicated to transforming packaging into a system that encourages economic prosperity and a sustainable flow of materials.