Reactor Sleeping Bag Liner

2026-03-24T14:54:44+11:00

Vendor: Sea to Summit
Type: Sleeping Bags
Price: 109.99

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.

Tech Specs

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

Weight: 284g

Dimensions: 216 x 80 cm

Packed Size: 15 x 7 x 11 cm

Fits Up To Height: 198cm