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Sea To Summit Reactor Thermolite Sleeping Bag Liner

Sea To Summit Reactor Thermolite Sleeping Bag Liner description

The Sea To Summit Reactor Thermolite Sleeping Bag Liner weighs only 9.2 ounces, adds up to 15 degrees to your sleeping bag's warmth, and packs to a tiny 3 x 5 inches. The key to this Sea To Summit sleeping bag liner's excellent stats is warm, breathable hollow-fiber Thermolite material. This sleeping bag liner weighs less and packs smaller than a comparable fleece liner, which makes it ideal for both backpacking and nights in the hostel.

I bought this liner after reading some reviews about it and became instantly skeptical when I saw how thin the liner is (as someone said, you can see through it) but I was impressed by the liner. It doesn't give the 15 degrees it says (10 is more accurate) but it can't be beat for comfort or packability

Essentially this is a giant polyester sock. It feels quite thin (you cansee through it if you hold it up to light). I don't know about 15degrees, but it did add a noticeable amount of warmth to my 30 degreebag on a cold night. The drawstring comes out on the left by default butwith a little effort I moved it to the right. I didn't feel like itinhibited motion in my sleeping bag, and it was relatively easy to getin and out of.It may be a little heavy (and expensive) for what it does. After all, itwon't be as efficient as down for its weight. If you bring it and don'tneed it, at least it makes a decent pillow.

nice to use alone in warm weather..also packs up small and is very light