Sea to Summit Thermolite Reactor Extreme Liner

Need a little extra warmth? The Thermolite® Reactor Extreme Liner increases sleeping bag performance by up to 15 degrees Celsius, thanks to its super insulating Thermolite® fabric. Thermolite® is a fibre with a hollow core, which provides superior warmth and breathability. The liner has been crafted with a stretchy knit fabric and features a spacious, mummy shaped design with box foot to allow increased movement - ideal for anyone who likes to wriggle or roll in their sleep. A draw cord hood has also been added for increased warmth. The Thermolite® Reactor Extreme Liner is machine washable for use season after season and packs down into its own stuff sack for easy transportation and storage.