on qualified purchases at our brands now thru 5/4/26.
About This Item
Design and Details:
Reactor Liner provides exceptional warmth, versatility and the freedom of movement in stretch knit comfort
Add warmth to your sleep system in cool or cold conditions: with reactor liner
Using Thermolite® Pro fabric with infra red-absorbing ceramic pigments
Thermolite® EcoMade fibres takes thermal performance to the next level
Stretch-knit fabric provides optimal comfort, and ensures the reactor fits any sleeping bag
Brand : Sea to Summit
Country of Origin : Imported
Web ID: 24S2SURCTRSLPNGBGCSL
SKU: 25271854
Length
85 in.
Dimensions:
85 x 31.5 in
Packed Size
5.9 x 3.0 x 4.7 in
Weight
12.6oz
Shoulder width
31.5 in.
Foot width
21.6 in.
REVIEWS
4.7
22 Reviews
Images
MARYELLEN P.
2 weeks ago
My Son And I Both
[This review was collected as part of a promotion.] My son and I both like this sleeping bag liner. He looks like a banana and I look like a spaghetti squash, but despite our size differences, we both fit comfortably in it. It has a gentle warmth when wearing it around camp and the arm free feature is a real winner. It is nice to get in and out of the sleeping bag without having to fuss with the liner getting all messed up - I was always fighting with my other one. I only gave it 4 stars because the hood is a joke. It is so shallow. It does have a draw string, but that doesn't do much except possibly when you are laying down. It would be very cool to have a deeper hood, especially for holding up the back when you are getting into the liner and getting it snapped. The other thing that would be nice is if there was a bit more room when you have your feet out to walk. It makes you take pretty small steps. One other thing I would add would be another snap or two that would hold the length up for when you are walking around camp, as it is, you have to hold it. However, it is still way better than any other liner I have used - the wearing part is genius!
Peter L.
2 weeks ago
Toasty
[This review was collected as part of a promotion.] Liner worked very well along with 25 degree quilt to keep me nice and warm during upper 20's temps. I really liked the fact you can "wear" this so you don't get tangled in while rolling over at night.
Tammy G.
1 month ago
Worth It
[This review was collected as part of a promotion.] My quilt is only comfortable down to about 40°, but with this I’m good down to freezing. Saved me from having to buy a warmer quilt.
Jason t.
1 month ago
Very Nice Liner
[This review was collected as part of a promotion.] This liner kept me warmer than usual on a 20 degree night out in my 30 degree bag. And my bag was clean after 4 days out. Just had to toss this tiny liner in the wash. Put it in a sink with a dash of liquid soap. Then hang it dry. Very easy.
Scottie B.
1 month ago
Sleeping Bag Insulator
[This review was collected as part of a promotion.] Bought this for my upcoming Kilimanjaro trip. Seems very warm and should pair well with my 15 degree REI sleeping bag
