The Western Mountaineering AlpinLite 20 Degree Sleeping Bag is a wider version of the super popular Ultralite sleeping bag. When it comes to loft, you're getting 5" of fluffy goodness to snuggle into during the night, thanks to it being packed full with 19 ounces of 850+ fill down. The full-length zipper is protected by a down filled draft tube while your neck is surrounded by a down collar. Rated to 20°F you can take this on your next backpacking trip and have plenty of room for your shoulders from day 1 to day 20.
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