Part of Marmot's UpCycle program, the Eco Pro 15 Sleeping Bag uses recycled materials throughout—from the nylon shell to the EcoPro 100 synthetic insulation. There could be a few hundred plastic bottles in a dump somewhere, but instead Marmot made them into this excellent cold-weather sleeping bag. Baffled construction keeps the insulation from allowing dead spots, so you won't wake up freezing on you next mountaineering trip. The Eco Pro 15 Sleeping Bag also includes an insulated draft collar to help you seal in every last bit of warmth during the coldest part of the night.

• Wave Construction overlaps insulation shingles to give you more insulation and extra warmth
• Two-way zipper sliders let you dump excess heat or mate it with another
• Insulated draft tube eliminates cold leaks through the zipper
• Stash pocket holds nighttime essentials close
• Hang loops let you air out the bag with ease