Sea to Summit Thermolite Reactor Fleece Liner

Retailers' Descriptions

Here's what other sites are saying:

The Thermolite Fleece Liner is the warmest of Sea to Summit's Reactor series and can be used to extend the warmth of your sleeping bag or can also double as a stand-alone summer bag. The Thermolite Fleece is incredibly warm for its weight and we have given this fabric a brushed finish for extra comfort.

- Summit Hut

Sea to Summit Bag Liners Thermolite Reactor Fleece Liner-Grey 160. It can also be used as a stand-alone sleeping bag in warmer climates and has a quarter length zipper to control temperature and allows the user to get in and out of easily. The hollow core fibers that make up this fabric trap heat effectively keeping you toasty warm. If you're looking for a high warmth to weight ratio or a lightweight summer bag this is an ideal choice.


Incredibly warm for its weight, the Sea To Summit Fleece Liner can be used to extend the warmth of your sleeping bag or it can double as a stand-alone summer bag.


Sea To Summit's Reactor Fleece Liner warms up sleeping bags on winter camping trips, and keeps you cozy on its own during warm summer backpacking adventures. Thermolite fleece retains your body heat to add a surprising amount of warmth for how light and compact the liner is. Sea To Summit added a quarter-zip for easy entry, and the drawstring hood stays snug overhead to keep your ears cozy.


The Sea to Summit Reactor Fleece Liner is a lightweight solution that boosts the thermal Performance of your sleep system. It's so warm and cozy that it can either add a full season rating to your sleeping bag or stand alone as an ultralight bag in the warmer months. The Technical mummy shape Features a quarter-length zipper and a drawstring hood for trapping precious body heat. This liner will also help keep the inside of your bag protected from dirt and oils that can otherwise decrease the lifespan of your sleeping bag. Features of the Sea to Summit Reactor Fleece Liner Adds serious extra warmth to a sleeping bag The paneled hood can be drawn in when maximum warmth is required Smaller and warmer than other fleece liners Technical mummy shape with one handed, easy to operate draw string hood Quarter zip makes it easy to get in and out Can be used as a stand-alone sleeping bag in warmer temperatures

- Moosejaw

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