GoKawiilThe outer shell uses a 30-denier recycled polyester ripstop with an inside liner made from 20-denier recycled polyester taffeta. It does a good job of holding back the moisture that often forms inside a tent, which I discovered after one very soggy night of testing. The fill is what Nemo calls Zerofiber insulation, which is made from 100 percent postconsumer recycled content fibers. The Zerofiber packs down remarkably small—this is the most compact synthetic-fill bag I've tested in this temp range—and retains its ability to trap warmth even when wet.
What I like most about this bag, and nearly all of Nemo's sleeping bags, is the wider cut through the torso area down to the knees. Like the Therm-a-Rest Questar above, this bag is almost a hybrid of a mummy bag and your father's good old 1970s square sleeping bag. Which is to say, this bag is roomy. The downside is that there's more dead space your body has to heat, but as someone who sleeps warm anyway, I'll take the extra room.
Specs:
Temp rating: -20°F / -7°C
Comfort rating: 30°F / -1.1°C
Fill: Synthetic
How to Pick the Perfect Sleeping Bag
A sleeping bag is typically one of the most expensive pieces of camping gear you'll buy. If none of our picks strike your fancy, here are some general guidelines.
How Will You Use Your Sleeping Bag?
Are you car camping? Thru-hiking the PCT? Headed out overnight in the August heat? Plotting a winter ski traverse of the Karakoram Himalaya? Which sleeping bag is right for you depends on how you're going to use it, especially the temperatures you plan to camp or backpack in, and how you sleep—hot, cold, in between.
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