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🔥 Sleep warmer, pack lighter, adventure farther!
The Sea to Summit Reactor Insulated Sleeping Bag Liner uses cutting-edge Thermolite hollow core fiber to add up to 15°F of warmth while remaining ultra-light and breathable. Its mummy shape with a box foot and drawcord hood maximizes heat retention, and it packs down into a compact 8 x 13 cm Sn240™ Siliconised Cordura sack—perfect for minimalist travelers and serious campers seeking premium comfort and durability.






| ASIN | B000NQQ4VK |
| Additional Features | Insulated, Lightweight, Compact |
| Age Range Description | Adult |
| Best Sellers Rank | #40,584 in Sporting Goods ( See Top 100 in Sporting Goods ) #31 in Camping Sleeping Bag Liners |
| Brand Name | Sea to Summit |
| Closure Type | Drawstring |
| Color | One Color |
| Customer Reviews | 4.5 4.5 out of 5 stars (677) |
| Fabric Type | thermolite |
| Fill Material Type | Polyester |
| Global Trade Identification Number | 09327868000197 |
| Item Dimensions L x W | 83L x 35W centimeters |
| Item Weight | 0.54 Pounds |
| Manufacturer | Sea to Summit |
| Manufacturer Part Number | 119 |
| Material | Polyester |
| Maximum Height Recommendation | 210 Centimeters |
| Model Number | 119 |
| Occupancy | 1 Person |
| Seasons | 3 Seasons |
| Shape | Mummy |
| ShellMaterial | Nylon |
| Size | One Size |
| Sport Type | Camping & Hiking |
| Temperature Rating | broadband |
| Thermal Resistance | 8 Watts per Meter per Degree Celsius |
| UPC | 856605160317 698997377047 |
| Unit Count | 1.0 Count |
Q**À
l'ho provato ma a temperature più alte di quanto previsto, ma tiene più caldo di quanto si possa pensare. è molto leggero e appare sottilissimo, ma la fibra cava con cui è fatto lo rende molto performante. Sea To Summit è una certezza, il prodotto si paga, ma la qualità è eccellente. oltretutto è molto morbido, non dà fastidio sulla pelle e non irrita le parti intime, cosa molto importante per me che dormo nudo
A**R
Hafif, yer kaplamıyor ve işini görecek gibi duruyor. Sea To Summit kalitesi..
W**5
I use this with a 2/3 season sleeping bag and it is very effective! It's enabled me to spend the night in negative temperatures. I particularly like the fact that it enables me to wash the sleeping bag less often (drying it is difficult as I can't use a tumble dryer). It is also large enough for me to pull it over my head (I'm 5 foot 7/1.71 meter tall). It dries really quickly too and I've been able to leave it in the tumble dryer for a short while to accelerate drying. Lastly it is very small once packed and extremely lightweight. Expensive but worth its price.
S**Y
When hiking I carry a tiny Naturehike summer sleeping bag, it only has a comfort temp of 15 degrees C. I like to carry this liner just incase the temperature drops lower than expected or I just find myself getting chilly. It does seem to work, I can't spread out like a starfish in it but I just sleep on my side instead. It is soft and comfortable. - Also, if it is not cold enough to want to get in it. I put my sleeping pad inside it, it acts like a fitted sheet so the pad is more comfortable on the skin. Which makes this an item I can use all year round.
M**H
Took this on my first backpacking trip to Death Valley in January (3 nights). It was colder than expected. The second night so cold our water froze. This liner not only made my sleeping bag cozy but added every bit of extra warmth advertised and some. Well worth the extra money and space in the pack. This will be a staple piece of my sleeping gear even in warmer weather - it adds that extra bit of comfort and to any sleeping bag. I also love the lining between dirty, several days into the trip body and the sleeping bag. It’s super easy to toss the liner in the wash and keeps the sleeping bag from having to be sent out for cleaning after every trip.
Trustpilot
4 days ago
3 weeks ago