4. The Space-Age Sleeping Bag
New for 2018, the L.L.Bean Ultralight Sleeping Bag uses insulation originally developed by NASA. PrimaLoft Gold with Cross Core leverages silica aerogel fibers to fend off water and boost heat retention without any extra weight. The tech is available in both 20-degree and 35-degree mummy bags.
[From $189; llbean.com]
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