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Trending Sea To Summit Thermolite Reactor Liner With A 50% Price Cut [N0GjER7W]

$24.99 $79.99 -69%

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 fibers , the new Reactor takes thermal performance to the next level.The

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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 fibers , 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.

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 fiber and infrared-absorbing ceramic pigments to reflect your body's heat back for enhanced warmth and comfort
  • Shoulder 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 odor 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

Specs

  • 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

What Our Customers Say

December 27, 2025

Absolutely no complaints!

A great item. No complaints.

- Christi Y..

December 27, 2025

Absolutely no complaints!

The performance is just great.

- Kenna M..

December 27, 2025

Absolutely no complaints!

I'm happy with this purchase.

- Tarah R..

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