Reactor Lightweight Liner, the sleeping bag liner that optimizes the performance of your sleeping system thanks to the advanced Thermolite® Pro fabric.
Ceramic pigments absorbing infrared, combined with hollow fibers, capture and retain body heat where you need it most.
With up to 4 °C of additional warmth for a reduced packed size, it is ideal for ultralight adventures.
Its stretch mesh fabric and articulated arm openings provide total freedom of movement.
Treated with the HeiQ Fresh odor control system, it is machine washable, quick-drying and allows you to wash your sleeping bag less frequently, extending its lifespan.
Main features
- Lightweight and effective warmth: Thermolite® Pro technology with hollow fibers and infrared-absorbing pigments enhances insulation without adding bulk
- Freedom of movement: stretchy mesh and shaped armholes follow your every move for unrestricted comfort
- Technical design and hood: the ergonomic cut and fitted hood provide warmth and comfort, without extra weight or bulk
- Universal compatibility: thanks to its stretchy fabric, the Reactor Lightweight liner adapts to all sleeping bag shapes
- Guaranteed freshness: HeiQ Fresh odor control technology keeps your liner fresh even with prolonged use
- Integration with your sleep system: shoulder snap buttons easily connect to Sea to Summit sleeping bags for quick and effortless entry and exit
- Easy care: machine washable, it reduces wear on your sleeping bag by limiting washing frequency
- Low-impact materials: made from certified recycled fibers, bluesign approved, to minimize environmental impact