Transform any sleeping bag into a four-season system with the Reactor Extreme liner featuring Thermolite® Pro . Designed specifically for colder conditions, this premium mummy liner is an essential part of your sleep gear. Featuring innovative Thermolite® Pro fabric , enriched with infrared-absorbing ceramic pigments , this liner provides a noticeable thermal boost when temperatures drop.
The soft, breathable stretch-knit fabric feels comfortable against your skin, effectively wicks away moisture, and moves effortlessly with you – ideal for restless sleepers. The clever fit ensures the liner fits into virtually any sleeping bag without restricting your movement.
An added bonus is the drawcord footbox , which allows you to easily ventilate or even move around camp without taking off your liner.
