Reactor Extreme Sleeping Bag Liner Standard from Sea To Summit is a sleeping bag liner with Thermolite® Pro that provides additional warmth during the night. A pleasant addition to your sleeping bag that makes the night more comfortable.\n\nMoisture-wicking stretch material\nDrawstring at the feet\nComfortable mummy shape \n Sea To Summit Reactor Extreme Sleeping Bag Liner Standard Sulphur Yellow | Buy Sea To Summit Reactor Extreme Sleeping Bag Liner Standard Sulphur Yellow here | Outnorth