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The “Reactor” is made from ThermoLite®®, a hollow core fiber that provides extraordinary warmth for its weight and remains extremely breathable.
Adds up to 15 degrees F / 8 degrees C of warmth to a sleeping bag or, used alone, is the ideal warm weather bag.
Features:
- Lighter weight, more packable than fleece
- Adds up to 15 degrees F / 8 degrees C of warmth to a sleeping bag
- Mummy shape with a box foot
- Draw cord hood with mini cord lock
- Color of liner is black
- Weighs just 8.7oz
- Packs into its own 3” x 5” sil nylon stuff sack
Specifications:
Reactor ThermoLite®® Liner:
- Weight: 8.7 oz / 248g
In trekkinn we are dedicated to create high quality outdoor products which will make your activity comfortable. Are you interested in buying Sea to summit Reactor Thermalite Liner? You are lucky, because at trekkinn in the Sleeping bags catalogue and Liners and blankets category, we offer other outdoor products that can complement your order. Place your order now and receive it in a few days.
Write a review about this product and earn CoINNs 
5 / 5
24 Reviews
Excellent
Andre - 17/04/2022
Shipping and delivery ok. As described on the platform. Quite useful.
Optimal
Corrado - 24/03/2022
Great product, shipped fast.
Delivery delayed 8 days
Passaro - 03/02/2022
I had ordered this article to try it during a winter camping on January 29, delivery scheduled for January 25, arrived on February 1.... No comments...
Works great
Marios Charalambous - 03/01/2022
Packs down very small and is a great option for adding a bit of extra warmth to my sleeping setup. Although i think it only adds about 2-4 degrees, rather than the 8 advertised.
Reactor Thermalite
Alexander - 26/11/2021
Stretchy, light but thin. It can be easily bitten through by mosquitos so during warm summer night you need additional cover
Quality and efficiency
PERUZZA - 16/11/2021
Very soft fabric. Good protection of the sleeping bag. Allows to significantly increase the thermal value of the sleeping bag. But not as much as the manufacturer claims. no 8 ° c, just 2 to 3 ° c any proportion kept, not having a measuring instrument. I base it on my feelings.
Sea-to-summit-reactor-thermalite
Сергей - 03/10/2021
Fast delivery. Weight and dimensions match. I have not yet checked whether the temperature adds comfort during the trip, but it will come in handy for the safety of the sleeping bag and hygiene.
Super
Артур - 22/07/2021
The liner is just great! The fabric is pleasant, light and small packing volume. Let's see if there will be an increase in the temperature of the sleeping bag. I like it
Сергей П. - 12/05/2021
Fantastic liner
Per - 26/04/2021
Fantastic liner that adds warmth and comfort to camping. It is also more hygienic as it is easy to put in the washing machine.
Thermalite
D.Vu - 31/01/2021
Must have
Magnificent sack
Antonio - 23/12/2020
Savanna bag that fulfills perfectly for the purpose that I bought it .. raises the temperature in the bag between 5 and 6 degrees and for hygiene.
ANDREY ANDREEV - 08/11/2020
Light and warm
Theodoros - 25/08/2020
Very good choice
Ideal
Cristina - 09/04/2020
Ideal for your bag
Great
Rob Swisher - 27/02/2020
Love the warmth it adds!!
It really works
Anair Souza - 04/11/2019
Purchased for the Tour du Mont Blanc trekking. When I used it I got quite surprised, this thing kept me really warm even the fabric being so thin
Very pleasant
Eric Reyniers - 06/08/2019
Have this inner sleeping bag in use for several years now and can now really judge the product. Provides extra warmth for your body heat on a cold night and is also useful in warm weather. The liner is then sufficient to sleep. Moreover, it then acts as a temperature regulator. Highly recommended, without a doubt.
Excellent product - best tried meat bag
Laurent - 04/06/2019
stretchy fabric, super convenient to slip in and out. dual use: only when it is hot, or in the down when it is cold. I even use it at home when it is hot enough big size to be comfortable (1m73)
Worth it's weight
MC - 19/04/2019
Love this liner, use it every time I camp.
Great sleeping bag liner
Elie - 31/01/2019
This is a great product. If you want to get a sleeping bag, you will just be fine.
Great
Sette - 27/09/2018
arrived perfect, took a little longer than anticipated but arrived from good, I recommend.
Works just like it says
Michal - 24/04/2018
Purchased for a winter trip to add a few degrees to my bag. Did the trick and a little extra comfort on a couple of cold nights.
One of my favorite things ever
Mr.Amid - 23/01/2018
A nice soft layer against your skin instead of nylon. It was super warm and comfortable and I found it very easy to get in & out of in my small tent. Probably my favorite comfort item the whole trip!
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