Incredibly warm for its weight, the Sea To Summit Fleece Liner can be used to extend the warmth of your sleeping bag or it can double as a stand-alone summer bag.
Along with extending the life of your sleeping bag, the Sea to Summit Thermolite Reactor sleeping bag liner adds 14°F of warmth.
Perfect for your traveling adventures, this rectangular Cocoon Travel Sheet made of Egyptian cotton is great as a sleep sack or sleeping bag liner.