Reactor Fleece Sleeping Bag Liner
# Partial COD available for orders up to ₹25,000
BEST USE: Thermal Boost
WEIGHT: 14.8oz | 420g
LENGTH: 85in | 216cm
PACKED SIZE: 9.8 x 3.5 x 5.5in | 25 x 9 x 14cm
- Thermal boost to retain heat and warmth, as the core of your sleep system the Reactor liner extends the performance of your sleeping bag and sleeping mat in the coldest of conditions
- Hollow-core Thermolite® EcoMade fibres are used in a grid-pattern fleece for maximum warmth retention
- Drawcord footbox can be opened or closed for optimal comfort and integrates perfectly with the footbox of our Free-Flow Zip system in select Sea to Summit sleeping bags
The Reactor Fleece Liner built from hollow-core Thermolite® Pro fibres used in a grid-pattern to deliver our warmest sleeping bag liner and the core of any quality cold weather sleep system. You can regulate your temperature using the shoulder zippers and drawcord footbox, which also align perfectly with the Free Flow-Zip system of Sea to Summit sleeping bags. The versatile Reactor Fleece Liner delivers comfort across multiple seasons or can even be used as a stand-alone sleeping bag in warm weather. Additionally, the drawcord footbox offers plenty of ventilation and the versatility of walking around camp while still wearing your liner if needed.

DESCRIPTION
The Reactor Fleece Liner built from hollow-core Thermolite® Pro fibers used in a grid-pattern to deliver our warmest sleeping bag liner and the core of any quality cold weather sleep system. You can regulate your temperature using the shoulder zippers and drawcord footbox, which also align perfectly with the Free-Flow Zip system of Sea to Summit sleeping bags. The versatile Reactor Fleece Liner delivers comfort across multiple seasons or can even be used as a stand-alone sleeping bag in warm weather. Additionally, the drawcord footbox offers plenty of ventilation and the versatility of walking around camp while still wearing your liner if needed.
Features
- Thermal boost to retain heat and warmth, as the core of your sleep system the Reactor liner extends the performance of your sleeping bag and sleeping mat in the coldest of conditions
- Hollow-core Thermolite® EcoMade fibers are used in a grid-pattern fleece for maximum warmth retention
- Drawcord footbox can be opened or closed for optimal comfort and integrates perfectly with the footbox of our Free-Flow Zip system in select Sea to Summit sleeping bags
- HeiQ Fresh odour control technology helps keep the liner fresh even after extended use
- A mummy shape designed for maximum thermal efficiency and includes shoulder zippers and footbox drawcord for additional temperature regulation
TECH SPECS
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Comes WithStorage Case
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Material(s)Thermolite® EcoMade Polyester
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SpecialBio-based HeiQ Fresh Odor Control
| Mummy Compact | Mummy | |
|---|---|---|
| Dimensions | 198 x 80 cm | 216 x 80 cm |
| Packed Size | 25 x 9 x 14 cm | 25 x 9 x 14 cm |
| Weight | 390g | 420g |
TECHNICAL FEATURES
Frequently Asked questions
Does the Reactor Fleece liner have a zipper?
No - to keep weight and packed volume down, we did not include a side zipper. Snaps at the shoulders mean a wider opening than some liners for entry and exit (and the drawcord footbox allows you to vent your feet or hitch up the liner and walk around camp
Can the Reactor Fleece liner be machine washed?
Yes. It can be washed in a machine with normal supermarket detergent - but avoid fabric softeners which reduce wicking perfomrmance. Machine dry on a cool/low setting (no dryer sheets) or air dry
How much warmth does a Reactor Fleece add to a sleeping bag?
This depends on how well your sleeping bag retains warmth (not the same as its temperature rating), how well your pad insulates (not the same as its R-Value) and a lot of other factors. You should see a boost of 10°C / 18°F when used with appropriate sleep system components
How does the HEIQ-Fresh work?
The liner is impregnated with bio-based amino sugar polymers that absorb and neutralize odors. When the liner is washed, the compounds that cause odor are released, and the polymer is ready for the next use