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Sea to summit Reactor Thermalite Liner

Sea to summit Reactor Thermalite Liner

Sea to summit Reactor Thermalite Liner

Sea to summit

Sea To Summit Reactor Thermalite Liner

Product description Sea to summit Reactor Thermalite Liner

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.


- 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


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.

Features Sea to summit Reactor Thermalite Liner

Product Type
Sleeping bags

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Shipping and delivery ok. As described on the platform. Quite useful.



Great product, shipped fast.

Delivery delayed 8 days


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


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


Stretchy, light but thin. It can be easily bitten through by mosquitos so during warm summer night you need additional cover

Quality and efficiency


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.



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.



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


Fantastic liner


Fantastic liner that adds warmth and comfort to camping. It is also more hygienic as it is easy to put in the washing machine.



Must have

Magnificent sack


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.


Light and warm


Very good choice



Ideal for your bag



Love the warmth it adds!!

It really works


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


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


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


Love this liner, use it every time I camp.

Great sleeping bag liner


This is a great product. If you want to get a sleeping bag, you will just be fine.



arrived perfect, took a little longer than anticipated but arrived from good, I recommend.

Works just like it says


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


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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