Silk is a natural insulator that breathes. A bag liner will add an extra layer of soft and breathable warmth and insulation while you're sleeping.
great for when you're on the move. It's always a good idea to take your own to sleep in wherever you go.
The liners are lightweight at about 5 ounces (160 grams), and fold up tight in their own little stuff bag. A silk sleeping bag liner is light enough for everyone to carry while traveling or hiking. While you may find other brands lighter than ours, we do not recommend a lighter silk as they do lose strength and will not last. Likewise for mummy liners - there is no real benefit in using a mummy liner to save less than one ounce. A rectangular silk sleeping bag liner is far more versatile and is completely unnoticeable in a mummy bag as the silk is so slick that it moves well with you regardless the size of your sleeping bag. We have found that's best to have a generous sized bag liner for not only maximum comfort, but also maximum longevity - it's too easy to push out the seams of a mummy bag during the early morning stretch
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