Sea to Summit Reactor Plus
Source: bought it new
Price Paid: $55
Really warms up a bag when you are on the cold edge of what your sleeping bag can handle.
- does what it says, warms up the sleeping bag
- can get tangled up in the material
This bag liner is amazing. It really warms up the bag. I was camping with this and my Marmot Atom (40°) and the temps got down into the high 30s. I woke up in the middle of the night chilled so I slipped into this and immediately felt more warmth. Not long after I was getting really warm and had to vent my sleeping bag. I would never guess such a thin fabric would hold in so much heat.
The bag liner packs up pretty small. Not as small as a silk bag liner but not as big as a sleeping bag either. I am tall at 6'1" but this liner fit me just fine.
On the down sides, you have to slide into this from the top and because it is a relatively thin material, if you toss and turn you can end up tangled up in it. Personally I would rather be warm than tangle free but that's just me. Some might find it restrictive.
I definitely recommend this liner for shoulder seasons or any time you are pushing your sleeping bags to their cold limits. Nice insurance to keep you warm through the night.
Price Paid: $50
This is a great addition to any sleeping bag OR used by itself.
My husband and I backpack a lot but did some car camping recently at Shenandoah NP. I had just purchased the Reactor Plus at EMS and was super stoked to try it out. My husband, on the other hand, purhcased the cooler bag (poor choice). It dropped to about 49 degrees that night and I was VERY comfortable.
Although I'm ususally a cold sleeper, I slept the whole night thru with this one. (My husband, on the other hand, was a bit chilly.)
It is definitely worth the investment, especially if your current sleeping bag needs a little something to take the edge off during the cooler months. OR, if you're like me, and like to have a thin layer during the warmer(ish) months, but don't want to use an actual sleeping bag.
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Sea to Summit's Reactor Plus Thermolite Liner - Compact increases sleeping bag performance by up to 20F (11C) with dual-weight Thermolite fabric. Their regular 80 g/m2 is combined with panels of 110g/m2 Thermolite in the core body and foot bed areas adding extra warmth where most needed. The compact, shorter design shaves off excess weight while giving maximum warmth for torso and feet.
The Sea to Summit Reactor Plus liner weighs just 9.3 oz. and adds up to 20degF of warmth to a sleeping bag. Or, use it alone in warmer conditions.
Combining 2 different weight fabrics, this Sea to Summit Reactor Plus Themolite(R) mummy bag liner adds a few degrees of warmth and extends the life of your sleeping bag. Constructed of insulating Thermolite fabric, a hollow-core, breathable fiber that provides extraordinary warmth for its weight. Combined with the regular 80g/m^2 Thermolite, super insulating 110g/m^2 Thermolite panels provide added warmth in the torso and foot bed areas. Adds up to 20degF of warmth to a sleeping bag; can also be used as a summer ultralight sleeping bag. Liner helps keep the inside of your bag clean, saving it from the wear and tear of washings. Drawcord hood with mini cordlock cinches around face to hold warmth in. Mummy shaped liner features a 3D footbox providing plenty of room for feet. Sea to Summit Reactor Plus Themolite comes with a lightweight Ultra-Sil(TM) stuff sack. Compact, short design is ideal for women or anyone under 6 ft. tall.
Extend the life of your sleeping bag and trap a little extra warmth with the Sea To Summit Thermolite Reactor Plus Compact-Length Mummy Liner. Built with insulating Thermolite fabric, this liner traps heat without over-bulking your pack. Furthermore, it keeps the inside of your bag clean and gives it a break from the wear and tear of normal use.