It's been around for decades, but hard to find. It works as well as cellulose and is easy to install.
The Benefits of Recycled Denim Insulation
Denim Recycling: A Sustainable Approach - denim
Here's How Recycled Denim Helps America - Cotton Incorporated Lifestyle Monitor™
Anthropologie Announces Collaboration with Cotton Incorporated's Blue Jeans Go Green™ Program
What Is All The Rage About Denim Insulation? - Pure Eco Inc
Sustainability
Anthropologie joins Cotton Inc recycling programme, Materials & Production News
What To Do With Old Jeans: 7 Denim Recycling Ideas To Make Old Blue Jeans Green
Blue Jeans Go Green Human Environmental Sciences
UltraTouch R- 13 Attic Wall 77.52-sq ft Unfaced Recycled Denim Batt Insulation in the Batt Insulation department at
Arizona Made: Bonded Logic, insulating products