The warmest liner in the Reactor family, built from Thermolite grid fleece to add real warmth to a bag you already own.
Thermolite hollow-core fibers in a grid fleece structure trap air without the weight of a thicker bag. Slip it inside a 30-degree bag in late fall and you extend the season instead of buying a second bag. It also keeps sweat and body oils off the down, which is what actually kills a sleeping bag over time.
The shape is ergonomic with a fitted hood, and the stretch knit plus shaped arm openings mean you can move, reach for a headlamp, or roll over without fighting the liner. Snap connectors at the shoulders pair with Sea to Summit sleeping bags so the liner stays put during entry and exit, and HeiQ Fresh odor control keeps it usable trip after trip.
Key features
- Boosts sleep system warmth: Reactor Fleeceweight uses Thermolite hollow-core fibers and grid fleece to trap warmth with minimal added weight
- Freedom to move: stretch-knit and shaped arm openings allow unrestricted movement, providing natural comfort throughout your sleep
- Technical shape and hood: ergonomic design with a fitted hood delivers optimal warmth and comfort without extra weight or bulk
- Stay fresh longer: HeiQ Fresh odor control technology keeps the liner fresh after extended use
- Sleep system integration: snap connectors at the shoulders easily pair with Sea to Summit sleeping bags for quick, hassle-free entry and exit
Specifications
| Insulation | Thermolite hollow-core fibers in grid fleece |
| Fabric | Stretch knit with shaped arm openings |
| Hood | Fitted, ergonomic |
| Integration | Shoulder snap connectors for Sea to Summit sleeping bags |
| Odor control | HeiQ Fresh |
| Sizes | Short, Regular, Long |
| Colorway | Picante |
Come see it at 432 E Main St in downtown Montrose, Colorado, or order online. Free shipping on qualifying U.S. orders.