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Rab Neutrino 400 Sleeping Bag: 21F Down

$399.95 - $414.95

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  • Reg/Left Zip
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Neutrino 400 Sleeping Bag

Stuffed with 800-fill European goose down, the Rab Neutrino 400 Sleeping Bag delivers three-season warmth without weighing a ton or taking up tons of precious pack space on light-and-fast climbing missions and minimalist backpacking trips. Rated down to 21-degrees Fahrenheit (European Lower Limit), this down-filled bag is ideal for chilly autumn evenings in the desert and summer nights camped at high elevations.

Water-resistant Pertex Quantum fabric prevents outside moisture from seeping through and compromising the down's heat-trapping loft. Going one step further, the down insulation features a hydrophobic coating that repels condensation and built-up perspiration from clumping together its lofty down clusters. Close-fitting neck baffles seal-in fiery heat, with trapezoidal baffle chambers throughout the body eliminating cold spots from stealing warmth. As a cool bonus, this bag zips into other Neutrino bags when you're camping with your significant other, favorite pooch, or simply desire double the sleeping space.

  • An ultralight sleeping bag for spring and fall backpacking
  • High-fill European goose down insulation keeps you warm and toasty
  • Close-fitting neck baffle helps trap your valuable body heat
  • Down fill is treated to resist loft-hampering moisture
  • 3/4-length zipper reduces unnecessary weight in the bag
  • Zips to other Rab Neutrino bags for easy mating
  • Item #RAB00L7

[face fabric] Pertex Quantum, DWR coating, [lining] nylon ripstop
800-fill hydrophobic down
Draft Tube
3D internal collar
[internal] 1 stash
Storage Sack
Stuff Sack
dry bag compression
Claimed Weight
1lb 12oz
Recommended Use
backpacking, mountaineering, weekend camping
Manufacturer Warranty

Tech Specs

What do you think about this product?


>Rating: 5

Warm, well crafted bag

I've used it several times
True to size
Size Bought
6` 1"
170 lbs

I've been backpacking in the mountains for two decades with inferior bags and finally upgraded. It has changed my life. For the first time ever, I slept in chilly temps (high 30s, low 40s) and been perfectly warm inside my bag. It seemed thin when it first arrived and I doubted it's ability to keep me warm, but it has held up. I even let my wife borrow it recently and now she wants one of her own. Sizing: Bought it because Rab regular size bags are about an inch longer than most bags and I'm 6'1" so right between regular and long bags. Regular size fits me perfectly!