Mountain Sports
Reactor Extreme Sleeping Bag Liner

Reactor Extreme Sleeping Bag Liner

Sleeping BagsStock: 582

$44.98$89.95

Product Details

An essential component in your sleep system, the Reactor Extreme liner with Thermolite® Pro fabric utilizes innovative infra red-absorbing ceramic pigments to give your system the thermal boost needed in colder-weather adventures.

  • 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
  • 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
  • Drawcord footbox and shoulder openings 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

COMPACT - 78IN STANDARD - 85IN
DIMENSIONS 78 x 31.5 in 85 x 31.5 in
PACKED SIZE 5.9 x 3.0 x 4.7 in 5.9 x 3.0 x 4.7 in
WEIGHT 12.6oz 12.8oz

Customer Reviews (5.0 / 5 · 3 reviews)

Jacob Y. ★★★★★

Slept in this liner on a 30-degree night and it genuinely made a difference, the Thermolite fabric traps warmth without feeling bulky. It packs down small enough to forget about until you need it.

Scarlett ★★★★★

Bought this for a chilly hut trip and it genuinely added warmth — the Thermolite Pro fabric feels soft against my skin instead of clammy like my old cotton liner. Packs down tiny too, so it barely took any room in my pack.

Abigail J. ★★★★★

Used this inside my 20-degree bag on a couple of frosty nights and the difference in warmth was obvious by morning. The Thermolite Pro fabric feels soft against the skin instead of clammy like my old silk liner, and it packs down small enough to forget about.

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