After using this bag in Idaho's Sawtooth Range, one tester immediately asserted, "It's time we stop comparing green bags only to other green bags. This recycled-content sack could hold its own with any other 15°F synthetic I've ever used." The EcoPro hollow-core filament insulation is 80 percent recycled soda bottles, and the polyester shell is made from 100-percent post-consumer materials–with a DWR finish that sheds light moisture. But you'd never know the eco-cred if you didn't read the hangtag. "This sack stuffs surprising well for a synthetic; it fit in the bottom compartment of my weekend pack along with a tent fly," noted another tester after a trip in Wyoming. The hood cinches snugly, the two-way zipper enhances ventilation, and the cut is generous. Minor complaint: The zipper tends to catch near the face. Reader Service #111
Greener: Every component (except the zipper) of the Big Agnes Skinnyfish and its stuffsack is made entirely of recycled materials. $180; 20°F; 4 lbs.; bigagnes.com. Reader Service #112
All weights are for regular size on BACKPACKER scales.
Testers: Gustave Axelson, Charissa Biederman, Kobe Biederman, Shannon Davis, Jon Dorn, Kristin Hostetter, Steve Howe, Jason Kauffman, Elisabeth Kwak-Hefferan, Mike Lanza, Annette McGivney, Tracy Ross, Tim Shisler, and Jessie Wyard
Test data: 197 bag nights; lowest temperature, -25°F (Adirondack High Peaks in March)