Exceptional warmth, versatility and the freedom of movement in stretch knit comfort.

Add warmth to your sleep system in cool or cold conditions: with our Reactor Liner. Using Thermolite® Pro fabric with infra red-absorbing ceramic pigments and Thermolite® EcoMade fibres , the new Reactor takes thermal performance to the next level.

The stretch-knit fabric provides optimal comfort, and ensures the Reactor fits any sleeping bag. Choose between the classic Mummy and the Mummy with Drawcord - the footbox opening offers plenty of ventilation and the versatility of walking around camp while still wearing your liner if needed.

BEST USE: Thermal Boost

WEIGHT: 9.5oz | 268g

LENGTH: 78in | 198cm

PACKED SIZE: 5.9 x 2.8 x 4.3in | 15 x 7 x 11cm