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Sea to Summit Reactor Thermolite Mummy Bag Liner Specs
Up to 15 degrees
Up to 8.3 degrees
3 x 5 inches
82 x 35 inches
Sleeping bag shape
Added warmth (F)
Added warmth (C)
Stuff sack size
Weight - metric
Sea to Summit Reactor Thermolite Mummy Bag Liner
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Sea to Summit Reactor Thermolite Mummy Bag Lineris rated4.0out of5by23.
Rated3out of5byhikerchickfromSea to Summit Reactor Thermolite linerI find that sleeping bag liners, for the most part, don't work well for me. Using one would be effective in keeping a bag clean, but I'm confronted with the problem of getting tangled up and the awkwardness of getting in and out of my sleeping bag. However a liner, like the Sea to Summit Thermolite, can be a good addition to adding more warmth when needed without paying the price of a warmer sleeping bag. I think the increased warmth of 14 degrees on the light weight liner that I purchased maybe optimistic, but I felt it performed well enough in turning my 41-degree rated sleeping bag to closer to a 31-degree bag during an early October overnight wilderness trip where the night temperature pushed the limits of my sleeping bag. Liners are intended to be used on the inside of a bag. All though, for those who are bothered by the problem of getting tangled up and need the gain of a little additional warmth, try slipping it over the outside of your sleeping bag like a bivy sack.
Date published: 2014-02-11
Rated5out of5byUgakingfromGreat addition to mummy bag, plus.Great addition to a mummy bsg for cold weather conditions and offers versatility as a warm weather bag all by itself. Excellent light weight option.
Date published: 2013-12-05
Rated5out of5byGreatandpowerfulturtlefromGood tool for your bagThis is a basic liner that buys you an few extra degrees and makes it easier to keep your bag clean. Its easy to clean, easy to pack and not very heavy. I've taken this into backcountry west virginia in october and it was honestly the most comfortable I have ever slept, though I have a multi part sleep kit to assure that.
Date published: 2013-10-24
Rated4out of5bySXC OutdoorsPlayerfromSolid, Glad I boughtI bought this as an insulator for my +15 sleeping bag. I wanted a lightweight cover for slightly cool nights when the sleeping bag is too much. I will be using this in the sleeping bag all winter long as I work in an outdoor wilderness education organization. So far so good, but the 10 and 20 degree weather not yet happened.
Date published: 2013-09-26
Rated4out of5byoptionalfieldfromGreat purchase!I recently took a trip to Yellowstone and did some backcountry camping. The temperatures got down to the mid/low thirties overnight and I knew from previous (and uncomfortable) experience that my sleeping bag wouldn't keep me warm enough. I purchased this liner to supplement my sleeping bag and it totally worth the money. It's very thin and lightweight so I was concerned about its effectiveness, but I was incredibly comfortable and warm all night. The fabric is also very soft and cozy and added minimal weight to my pack.
Date published: 2013-09-18
Rated4out of5bylyssmfromgood, not great, addition to gearI liked this liner as an addition to my +20F sleeping bag, which I always get cold while using. I recently took this liner camping in Yellowstone and it definitely helped warm things up a little to the point where I was chilly, not cold. I am always cold-natured though. I also used just the liner by itself when camping in northern missouri and it worked great.
Date published: 2013-09-05
Rated5out of5byMark Anthonyfromquality linerbought it for a backpacking trip around the Minarets in the Ansel Adams Wilderness. kept my sleeping bag clean. And it actually wasn't very cold so I slept in just the liner with my sleeping bag open. very very comfortable.
Date published: 2013-08-14
Rated4out of5byMarcusAureliusfromExtends bag lifeI bought this to extend the life of my down sleeping bag, which is about 20 years old. This is just what the doctor ordered. My 40-degree down bag was working more like a 60-degree down bag in my hammock sleep system. I've used this liner twice now and slept more comfortably than ever.
Date published: 2013-08-09
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Sea to Summit Reactor Thermolite Mummy Bag Liner Customer Reviews