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Rab Neutrino 200 Review

Rab Neutrino 200
Photo: Rab
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Price:  $295 List
Pros:  Lightweight.
Cons:  Wide cut, neck baffle is unnecessary, hood and baffle cords are bulky and uncomfortable, not as warm as other bags.
Manufacturer:   Rab
By Chris McNamara and Max Neale  ⋅  Jun 7, 2015
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Our Verdict

The Rab Neutrino 200 is one of the most disappointing sleeping bags we've tested. It has high-quality 800-fill power down, but just not enough of it. The bag is cold for its weight. Check out our Backpacking Sleeping Bag Review to see how the Neutrino 200 compares to other hooded bags we tested. See the Ultralight Sleeping Bag Review for the best bags that prioritize weight savings.

This bag has been updated since our testing.

Our Analysis and Test Results


The Rab Neutrino 200 is an above average summer weight down sleeping bag. It has high-quality 800-fill down and Pertex Quantum shell material. The best part of the bag is it's $295 price tag, which is slightly cheaper than other bags we reviewed.


Even though it's slightly cheaper than other bags reviewed in this class we don't recommend the Neutrino 200. There are several drawbacks: 1) it has a wide cut that poorly suited to trim folk, 2) it has a neck baffle (an unnecessary feature in an ultralight bag), and 3) the neck baffle and hood drawcords are very thick and very long- they get in your way and extend far down into the bag when fully cinched. Most importantly, the bag only has seven ounces of down in it. That's roughly twice what's found in superlight down jackets. This is a sleeping bag and a wide one at that (wider bags require more down to create the same amount of loft as a narrower bag). It deserves more down. Finally, the bag has a fixed girth so it can't adapt to changes in clothing like quilts can.

Material Weight to Fill Weight ratio is a rough indicator of warmth...
Material Weight to Fill Weight ratio is a rough indicator of warmth to weight ratio.
Photo: OutdoorGearLab

Other Versions

Rab Neutrino 400 - Women's and Rab Neutrino 400
  • Cost - $385
  • Editors' Choice Award Winner
  • Great warmth to weight ratio
  • 27*F EN Comfort Rating

Chris McNamara and Max Neale