Sea To Summit Reactor Thermolite Mummy Liner

2024-01-03T19:00:00

Greatly helped us isolate against cold temperatures going down to 24F while tent camping.

Isabelle W.

Originally posted at

2023-12-28T19:00:00

I appreciate the customer service-always delivered promptly and great communication. The product is just what I was looking for-a small light weight sleeping bag liner which keeps my expensive sleeping bag clean and adds a little warmth but doesn't restrict movement.

Chuck C.

Originally posted at

2023-12-20T19:00:00

Love this liner for my 30 degree down quilt! Warm, and so comfortable. I know it will keep my quilt cleaner, and will easy to wash. Will use it on my At thru hike in 2024.

James E.

Originally posted at

2023-11-20T19:00:00

Comfortable sleeping bag protection plus add warmth. After a grimy day of hiking or biking and not being able to shower the sleeping bag liner is not only comfortable but keeps my expensive sleeping bags clean and in good shape. Easy to eat a liner after each trip and because of it I've never needed to wash a sleeping bag

Chris W.

Originally posted at

2023-10-10T20:00:00

Adds real felt warmth to lighter bags when temps dip slightly less than bag rating.

Randy C.

Originally posted at

2023-08-30T20:00:00

Excelente para el verano, y seguro se sumará a mis acampadas en climas más frescos. Suave y comfortable. Primera calidad, como todo lo que ofrece Sea to Summit

Facundo L.

Originally posted at

2023-04-20T20:00:00

I actually have not used it yet,weather is jus starting to warm up for camping here in Alaska!

Ricky M.

Originally posted at

2022-11-13T19:00:00

It does make a difference, I wish I would have gotten the step above this one. Very light and easy to use, easily fits inside almost anywhere you need to stuff it.

Gary L.

Originally posted at

2022-11-10T19:00:00

This little guy is an awesome way to "Pack Light, Freeze at night, but at least you'll make the hike" for all you infantrymen out there. This will take a crap issued sleeping bag and make it comparable when supply says their out of cold weather gear or make an ultralight sleeping bag into a normal Weighted bag without dropping hundreds more on repetitive gear. Great addition to any camping loadout.

Daniel T.

Originally posted at

2022-09-20T20:00:00

Great, light weight

Sam M.

Originally posted at

2022-09-17T20:00:00

Great product

Brad W.

Originally posted at

2022-08-11T20:00:00

This products allows for much better temperature control (and comfort) while in a sleeping bag. It will definitely add warmth to a bag. It also allows you to open/unzip your sleeping bag in order to let cooler air in while still providing insulation.

Andrew H.

Originally posted at

2022-05-04T20:00:00

Sea to Summit is a top quality, first class company. Great to work with as far as customer service. Their shipping is fast, accurate and reasonably priced. This liner was exactly what I needed to keep my bag clean and free from body oils in order to extend the life of my bag, and it is definitely warmer. Thanks Sea to Summit.

Bobby T.

Originally posted at

2022-04-14T20:00:00

It worked great! pretty standard body condom but worked great on my hut trip and car camping in cold temps. Only had a 20 degree sleeping bag and was sleeping in between 0-10 degrees just fine.

Cameron C.

Originally posted at

2022-03-23T20:00:00

Much thinner than expected it to be. Not entirely sure how they are calculating that it adds 14 Deg of warmth, but with the thinness of the product, I cannot imagine that is the case. Regardless, it is well constructed and big enough for any person shape or bag size. Lightweight and packs down to smaller than a Nalgene, or you can put it in your bag and stuff it all at once.

Jason L.

Originally posted at

2022-02-21T19:00:00

Comfy warm liner that is not at all restrictive. Added warmth on cold night in an old down bag. SudVery happy with it.

Susan T.

Originally posted at

2022-01-21T19:00:00

This is a great addition to my sleep system. I will not have to wash my bag as often which will extend the life. This is a very light weight and comfortable addition that allows me to take on the many conditions I encounter on long distance bicycle touring.

Brent J.

Originally posted at

2021-09-06T20:00:00

Compact, great for warmer nights to not overheat in a sleeping bag.

William S.

Originally posted at

2021-06-06T20:00:00

Comfy good works well.

Travis E.

Originally posted at

2021-06-01T20:00:00

I found the liner to be very snugly. My feet and shins still were cold (even with down booties) but I wasn't miserable. I'm 5'8" and fits perfectly up and around my head. It weighs nothing and takes up such a tiny space when packed. I highly recommend this product.

Laurel B.

Originally posted at

2021-04-25T20:00:00

Heat to weight ratio is excellent

Jared W.

Originally posted at

2021-03-07T19:00:00

This liner extends the use of m 55 degree bag, down to about 40 degrees, or can be used alone in warm weather. Love the diversity this adds! Lightweight enough to pack away for extended trips. Planning on getting the Reactor fleece liner to extend my 20 degree bag to below zero! Shipped quickly! Highly recommend

Robert S.

Originally posted at

2020-12-13T19:00:00

I haven?t been in cold enough conditions to really test that aspect out, but so comfortable! I love it!

Ian T.

Originally posted at

2020-11-22T19:00:00

My previous fleece liner was warm and comfortable, but it wasn?t small by any means. I decided to try the Thermolite Reactor as a smaller, lighter alternative. When it arrived, I was surprised by how thin it was. But I was just as surprised when it provided the perfect amount of warmth inside my sleeping bag in ~30º temps.

David B.

Originally posted at

2020-11-03T19:00:00

Used this product for 15 nights in Colorado, september 2020. Worked great! Kept my sea to summit bag cleaner and more comfortable. The added warmth was noticeable as well. Reccommended this to friends.

Levi W.

Originally posted at

2020-11-01T19:00:00

I was a little skeptical when I first removed the liner from its tiny stuff sack thinking ?this is going to be a wrestling match to get into?and it?s so thin and light?. However, on the first night out my skepticism vanished as it proved a cinch to get positioned/inserted etc... and the extra comfort and warmth it afforded was very impressive. Great little addition to my kit, won?t leave home without it????

Douglas S.

Originally posted at

2020-08-15T20:00:00

I was so glad have this along on our latest backpacking and camping trips. It is very soft and comfy and was the only liner I could find that would actually boost warmth and did not feel too heavy or bulky to add to my backpacking load. My only tiny criticism is that it is a little hard to get in and out of with the sleeping bag and everything- kind of a todo. If Sea to Summit came up with a tie or snap system that coordinated with one of their bags that might be cool.

Stefanie S.

Originally posted at

2020-07-15T20:00:00

This is the perfect addition to any bag when you want to feel a little cozier in the back country!

Heidi H.

Originally posted at

2020-06-14T20:00:00

This thermal sleeping bag liner is very soft and the perfect weight to increase my sleeping bag warmth about 15-degrees ... Perfect use with my 32-degee bag on a windy 25-degree night!

Jennifer B.

Originally posted at

2020-01-14T19:00:00

It definitely adds some additional warmth. It has plenty of room with a lot of stretch. The best thing about it is that it keeps an expensive sleeping bag clean.

Clint

Originally posted at