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Reactor Fleece Sleeping Bag Liner - Past Season

Reactor Fleece Sleeping Bag Liner - Past Season - Main image
$58.47 $94.95 In stock

Category: Gear Sleeping Bag Liners

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 odor 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
  • Sea to Summit Guarantee is offered for the Lifetime of this product
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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 (4.2 / 5 · 5 reviews)

Robert J. ★★★★★

I've tried a few liners and this grid-pattern Thermolite one is noticeably warmer than the flat fleece kind. It packs down small enough to stuff in my pack's lid pocket, and the fabric feels soft against my skin instead of scratchy.

Adam G. ★★★★★

Slept in this liner down to about 30 degrees and stayed warm the whole night, which I didn't expect from something this thin. The hollow-core fibers trap heat way better than my old cotton liner, and it packs down small enough to stuff in the bottom of my pack.

Matthew ★★★★★

The Thermolite grid pattern really does trap heat differently than my old cotton liner. I used it inside my 20-degree bag on a soggy camping trip and woke up warm for once.