Highlights
Best Use: Thermal Boost
Weight: 9.5oz | 268g
Length: 78in | 198cm
Packed Size: 5.9 x 2.8 x 4.3in | 15 x 7 x 11cm
Performance
- Ultralight
- Lightweight
- Midweight
- Ultra Compact
- Compact
- Midsize
- Warm
- Cold
- Extreme Cold
About The Product
Add warmth to your sleep system in cool or cold conditions: with our Reactor Liner. Using Thermolite® Pro fabric with infra red-absorbing ceramic pigments and Thermolite® EcoMade fibres , the new Reactor takes thermal performance to the next level.
The stretch-knit fabric provides optimal comfort, and ensures the Reactor fits any sleeping bag. Choose between the classic Mummy and the Mummy with Drawcord - the footbox opening offers plenty of ventilation and the versatility of walking around camp while still wearing your liner if needed.
Product 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 in colder conditions
- Thermolite® Pro technology using knitted, hollow-core fibres and infrared-absorbing ceramic pigments to reflect your body's heat back for enhanced warmth and comfort
- The classic Mummy version has practical openings in the shoulders to allow the user to stretch his or her arms out
Shipping & Returns
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- Thermal boost to retain heat and warmth. As the core of your sleep system the Reactor liner extends the performance of your sleeping bag in colder conditions
- Thermolite® Pro technology using knitted, hollow-core fibres and infrared-absorbing ceramic pigments to reflect your body's heat back for enhanced warmth and comfort
- The classic Mummy version has practical openings in the shoulders to allow the user to stretch his or her arms out
- In the version with the drawcord footbox, the base or shuolder openings can be opened or closed for optimal comfort. They integrate perfectly with the Free-Flow Zip system in select Sea to Summit sleeping bags. Open the base drawcord, and you can hitch the liner up and walk round camp - perfect for bathroom breaks
- HeiQ Fresh odour control technology helps keep the liner fresh even after extended use
- Knitted fabric provides incredible stretch and freedom of movement - Reactor liners work perfectly with sleeping bags of any shape
- Sea to Summit Guarantee is offered for the Lifetime of this product
Versatile Sleeping Bag Liner
Technical Features

HEIQ Fresh

Thermolite Pro

Thermolite Eco Made
Tech specs
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Comes WithStorage Case
-
Material(s)Thermolite® Pro & EcoMade Polyester
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SpecialBio-based HeiQ Fresh Odor Control
Compact Mummy | Standard Mummy | |
---|---|---|
Dimensions | 78 x 31.5 in 198 x 80 cm | 85 x 31.5 in 216 x 80 cm |
Fits Up To Height | 70 in 177 cm | 78 in 198 cm |
Packed Size | 5.9 x 2.8 x 4.3 in 15 x 7 x 11 cm | 5.9 x 2.8 x 4.3 in 15 x 7 x 11 cm |
Weight | 9.5oz 268g | 10oz 284g |