Sea To Summit Reactor Extreme Mummy With Drawcord

Sleeping bag liners can sometimes feel a bit claustrophobic. This model enables you to keep your arms outside and also open at the foot end, greatly helping the situation, and allows for the use of the liner outside of the sleeping bag as well.

Traditionally, there have been no standardized laboratory tests for sleeping bag liners, but Sea to Summit has tested this liner according to the ASTM D1518-2014 standard and found it to increase the insulation capacity of a summer bag by 15% and a three-season bag by 7%.

So, all in all, this sleeping bag liner adds a bit of extra warmth to your bag and also reduces the need to wash the bag - washing the liner is a small operation compared to properly washing and drying the sleeping bag.

• The material is Thermolite Pro Far Infrared fabric
• The fabric, utilizing infrared technology, not only insulates but also reflects some of the body’s heat back
• Biocide-free HeiQ Fresh FFL odor control treatment