Sea to Summit Reactor Thermolite Sleeping Bag Liner;

Pack the 9oz Sea to Summit Reactor Thermolite Sleeping Bag Liner on trips where the weather could change drastically or for a night under the stars. This mummy shaped sleeping bad liner adds up to 15 degrees Fahrenheit to your sleeping bag and can keep you comfortable on a cool night by itself. The combination of its low weight and high compressibility makes it a painless addition to your camping quiver.