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Mountaineering is focused on going fast and light, so the Rab Neutrino 400 27 Degree Down Sleeping Bag makes perfect sense for spring peak-bagging. After putting away the miles all day, you'll be glad that you didn't weigh yourself down with a heavier bag—the Neutrino weighs just 1.75lbs—but psyched that you have the weather-resistance and comfort of hydrophobic 800-fill European goose down and water-resistant Pertex Quantum fabric to crawl into. Rab made sure there was a neck baffle, collar, and drawcord hood to seal in the warmth, and designed trapezoidal baffles to keep the insulation in place. There's also anti-snag zipper tape for easy zipping, and a drybag compression sack to keep your bag dry if you get caught in a surprise rainstorm.

  • 800-fill hydrophobic European goose down
  • Pertex Quantum fabric
  • Close-fitting neck baffle with collar and drawcord hood
  • Angled foot box
  • Trapezoidal baffle design
  • Anti-snag zipper tape
  • Drybag compression sack and storage sack included

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Rab Neutrino 400 Sleeping Bag: 27 Degree Down

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Unanswered Question

What is the size of the long bag compressed in the stuff sac?

Rab Hydrophobic Down

In the early days, Rab Carrington built his brand around down insulation, and we still see down manufacturing as a core part of the Rab brand today.

All of our down insulated products are filled with the highest quality Hydrophobic Down, developed in conjunction with Nikwax. The hydrophobic treatment is applied at source and is seen as the next step in our progression in down manufacturing.