The ThermalGuard Reactor Sleeping Bag Liner is the ultimate addition to your outdoor gear, expertly designed to enhance the performance of your sleeping bag and mat in chilly conditions. Using advanced Thermolite® Pro technology, this liner features hollow-core fibers and infrared ceramic pigments that effectively reflect your body heat, ensuring optimal warmth and comfort throughout the night.
Its versatile drawcord footbox allows for customized comfort by opening or closing as needed, seamlessly integrating with the Free-Flow Zip system in select Sea to Summit sleeping bags. Thanks to HeiQ Fresh odor control technology, this liner stays fresh even after extended use, making it a reliable choice for any adventure.
The knit fabric provides exceptional stretch and freedom of movement in a mummy shape, compatible with various sleeping bag designs. Lightweight and compact, this liner is a must-have for those seeking affordable sleeping bags and liners without compromising on quality.
Adam Harrison (verified owner) –
The ThermalGuard Reactor liner is a game-changer! I felt so warm during my camping trip, and it fit perfectly with my sleeping bag. Highly recommend!
Nancy Frost (verified owner) –
I’ve tried several sleeping bag liners, but this one is the best. It’s lightweight and really enhances warmth without taking up much space in my backpack.
Curtis Williams (verified owner) –
Absolutely love the Reactor Thermolite liner! The stretch fabric allows for great movement, and it kept me cozy all night long. Worth every penny!