SEA TO SUMMIT Thermolite Reactor Fleece Liner 6006-851

SEA TO SUMMIT Thermolite Reactor Fleece Liner


Rocksolid Guarantee

Shop with confidence. If it’s not working out, you can return it (consumables, undergarments and swimwear excluded).

Really. If it's not up to snuff after you use it (a couple times) you can still bring it back.

It lasts longer than 30 days, but not forever. We'll be fair about it. We're all members here.

Price match guarantee

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If you see a lower price for this exact item advertised online, in print or in a store, give us a call at 1 (888) 847-0770.

If it’s identical, brand-new, in stock, and sold and shipped by a Canadian-based retailer, we’ll match that price.

See available Sleeping bag liners


Show Description

Extreme cold calls for extreme measures. This soft and stretchy mummy-bag liner can add some serious warmth, increasing your sleeping bag warmth by up to 18C, so you can get an extra season out of your bag. Use it as a lightweight stand-alone sleeping bag during the summer.

  • Made of Thermolite® fleece fabric with a brushed finish.
  • Cinchable drawcord hood and quarter length zipper for temperature control.
  • Includes a silnylon stuff sack.

Tech specs

Show Tech specs
Ideal for
  • Winter and expedition camping
  • Camping and hiking
  • Travel
Material Fleece
Shape Mummy
Stuff sack Yes
Pillow sleeve No
Made in China