Sea to Summit | Outdoor Gear To Equip & Inspire

Reactor Sleeping Bag Liner

Reactor Sleeping Bag Liner - Main image
$48.27 $74.95 In stock

Category: Gear Sleeping Bag Liners

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 fibers 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 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
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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.8 / 5 · 5 reviews)

Carter ★★★★★

Took this on a 30-degree overnight and actually stayed warm, which never happens for me. The Thermolite Pro fabric feels thin but traps heat way better than the pricey silk liner I used for years. Packs down to about the size of my fist too.

Violet ★★★★★

I run cold at night so I grabbed this liner hoping it would actually make a difference, and it does. The Thermolite fabric feels surprisingly soft against my skin and I was noticeably warmer without the bag feeling swampy.

Owen L. ★★★★★

Took this on a three-night trip in the Cascades and it made a real difference in my 20-degree bag. The Thermolite Pro fabric feels soft against my skin instead of clammy like my old silk liner, and it packed down small enough to stuff in the foot of my pack.