Sea to Summit Reactor Plus Thermolite Liner - Compact
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Most Helpful Positive Review Don't judge book by its cover
Its incredible the amount of warmth the reactor thermolite provides with how thin the material is!I love how soft it is. The color is great for hiding dirt but can be hard distinguishing when inside out.Its slightly a pain to get into because there is no zipper. There is just a wide opening with a draw string you pull to tighten around your head if really cold.Otherwise can be just around your ne
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Lightweight and Warm

by e, Verified Owner from OH, United States Written on October 11, 2023
Love this little liner bag! I use it with my Disco 30 and it definitely makes a difference. I'm not sure I'd say it provides a full 20 degrees more warmth but for me it takes my sleeping bag down another 10 degrees easily. It's super thin so I just store it with my sleeping bag in my pack and it's ready to go. Super soft and love the hood on cooler nights when the bag would be too warm. I'm 5'-4" and purchased the 'compact' to shave off a few more ounces. I do wish I had gotten the 'regular' length instead as I burrow down when nights are cold and find my feet fighting for space. This works great as a lightweight sleeping bag when it's a bit warmer overnight and I can use my Disco as more of a quilt. Highly recommend!
Pros:
  • warm , light weight
Cons:
  • a bit short
Best Used for:
  • backpack camping
Would recommend: Yes
1 of 1 found the following review helpful.
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Compact Fleece Liner

by MountainBetty, from OR, United States Written on September 8, 2018
I’ll never go camping without one of these! Keeps my sleeping bag clean, warm, and if it’s a particularly warm night it acts as it’s own tiny little sleeping bag. I’ll be giving these as stocking stuffers to my outdoorsy family members for Christmas!
Best Used for:
  • Backpacking
Would recommend: Yes
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Great Product

by Doug, from AL, United States Written on December 5, 2017
I purchased this liner for my son's upcoming Boy Scout trip to Philmont. I was looking for a light weight liner to add a few degrees of warmth to his sleeping bag. It arrived quickly from Camp Saver just like they said. I can't wait for him to try it out.
Would recommend: Yes
0 of 1 found the following review helpful.
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Nice and compact

by Tracy W., Verified Owner from MA, United States Written on June 14, 2016
Used it alone and it was great! Very small and compact.
Would recommend: Yes
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Quality product

by Anthony V., Verified Owner from CA, United States Written on February 23, 2016
Item was as expected. Light at 9.7oz and very soft to the touch. Will work well for my future backpacking trips. Highly recommend.
Would recommend: Yes
1 of 2 found the following review helpful.
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Love It

by Graham F., from GA, United States Written on December 7, 2015
I will be using this in along with my Eddie Bauer Kara Koram 20 degree down bag when I thru-hike the A.T. this year. Just tested this combo in 20 degrees and it was really warm! I would say the liner adds about 10 degrees to your bag and helps keeps it clean! Super soft and comfortable.
Would recommend: Yes
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Great liner

by Marshall L., from NY, United States Written on April 20, 2015
Bought to keep the inside of my sleeping bag cleaner, easier to clean the liner than the bag. Not sure about the added warmth, seems pretty light to actually add 15-20 degrees. But I'm sure it helps a little. Buy for the feel/convenience, not the added warmth.
Would recommend: Yes
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awesome

by outdooradventur, from TX, United States Written on August 5, 2014
was quite warm under this liner and my keltic 35 down sleeping bag at 50 degrees.
Would recommend: Yes
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Liner functioned as advertised.

by Santa Fe Tom, from NM, United States Written on September 10, 2013
Liner provided good warmth and was easy to set up in the sleeping bag.
Would recommend: Yes
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