Sustainability
Updated:
Mar 11, 2026The Therm-a-Rest Parsec is a middle-of-the-road option for sustainability, offering some solid features at the product level. It uses 100% recycled nylon for both its shell and lining fabrics, certified to the Global Recycled Standard. Its down insulation is also treated with a PFAS-free hydrophobic coating and certified to the Responsible Down Standard. Additionally, the bag’s durable water-repellent finish is PFAS free. The only notable drawback is that the Parsec doesn’t incorporate Bluesign-approved materials.
At the brand level, Therm-a-Rest has made progress in sustainability, but there is still room for improvement. On the positive side, its parent company, Cascade Designs, tracks its greenhouse gas emissions through the Change Climate Project and has set reduction goals. The company also offers repair services for all of its products. However, Therm-a-Rest hasn’t published an annual impact report since 2018, leaving limited insight into its recent emissions reduction progress or other initiatives. The company began using reduced packaging in 2018, but no updates have been published since. Additionally, Therm-a-Rest doesn’t offer a resale or recycling program for used gear.
Below, we break down in detail all of the Parsec 20's sustainability attributes at the product and brand level, including links to in-depth articles on relevant topics. For more, see our guide to the best backpacking sleeping bags and our review of the Parsec 20.
Therm-a-Rest Parsec 20
Longevity
Responsible Down Standard
PFAS-Free DWR
Recycled Materials
Bluesign Approved
Responsible Manufacturing
Recycled and/or Reduced Packaging
Repair Services
Resale and/or Recycling Services
Carbon Footprint Tracking
Annual Impact Report
Longevity
Responsible Down Standard
PFAS-Free DWR
Recycled Materials
Bluesign Approved
Responsible Manufacturing
Recycled and/or Reduced Packaging
Repair Services
Resale and/or Recycling Services
Carbon Footprint Tracking
Annual Impact Report
Longevity
Responsible Down Standard
PFAS-Free DWR
Recycled Materials
Bluesign Approved
Responsible Manufacturing
Recycled and/or Reduced Packaging
Repair Services
Resale and/or Recycling Services
Carbon Footprint Tracking
Annual Impact Report
These products are among the most sustainable on the market and earn our Better Trail Certified distinction. They often meet 80% or more of our sustainability criteria for their category.
These products are solid, middle-of-the-pack options for sustainability. In general, they meet at least half of our sustainability criteria for their category.
These products are among the least sustainable in their product category and have significant room for improvement. Most meet about 25% or less of our sustainability criteria.
The world of sustainability can be murky, but Better Trail is here to help bring clarity. We’ve exhaustively researched thousands of outdoor gear products, communicated with brands, and created a detailed and rigorous ratings system to bring it all together for you. At the pinnacle is Better Trail Certified.
Better Trail Certified products score 4 out of 5 or higher in our sustainability ratings and generally meet around 80% or more of our criteria. While it’s true that no product is 100% sustainable—all take resources to create and arrive at your doorstep—these products are industry leaders and among the most sustainable on the market.