The Quest for Environmentally Friendly Sleeping Bags

Last year's Zero Impact Challenge by Backpacker Magazine focused on eco-friendly backpacks. The challenge was to "create a trail-worthy 3,500-cubic-inch midsize with materials and manufacturing that entail minimal environmental impact."

Seems pretty simple right? Not so. If you knew anything about pack design you'd understand the enormity of the task. An eco-friendly backpack needs to be light, simple and made of recycled material. Five companies that rose to the challenge were GoLite, JanSport, L.L. Bean, Mountainsmith and Osprey.

Key = Lowest impact (1, Green); Lower impact (2, Blue); Business as usual (3, Orange)

This year, the challenge is focused on something more interesting -  sleeping bags. The goal was to develop a dependable three-season sleeping bag with lower carbon emissions.

Five out of thirty companies rose to the challenge - Big Agnes, Feathered Friends, GoLite, Sierra Designs, and The North Face. The rules are simple:

"Send us a bag rated 20°F, plus an encyclopedia of data on materials, shipping, and energy use."

This finished sleeping bags have to undergo a three-month evaluation by testers from Colorado, Vermont, Kentucky, New York and Utah. How much the bags impact the environment will be analyzed by Cooler, a pioneer in climate studies and product analysis, and endorsed by three major environmental organization.

Findings

• Recycled polyester produces 35 percent less emissions than virgin poly and 50 percent less than virgin nylon
• Goose down bags are not greener than recycled polyester
• Contestants cut emmissions by 10 percent

The results in alphabetical order:

Big Agnes Tumble Down 20
Less bag where many hikers don't need it makes a big difference.

Feathered Friends Blue Heron 20
A winning combo: Make it light and local.

GoLite Starlite 20
Recycled materials and fewer trucking miles trim carbon weight.

Sierra Designs Verde 20
No bag in this challenge incorporated more recycled components.

The North Face Green Kazoo 15
How do you replace a legend? Cut its footprint without cutting warmth.