Rab Neutrino Endurance 400 Sleeping Bag

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Product Code: 2832

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Rab Neutrino Endurance 400 Sleeping Bag

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  • Pertex Endurance Riptop outer fabric for water resistance and durability
  • Pertex Quantum inner fabric is lightweight and breathable
  • Pertex Endurance inner fabric in the hood and collar
  • 800 US fill power European goose down to a 90/10 down/feather ratio
  • Hydrophobic down from Rab absorbs less water, dries faster and retains loft
  • Mummy taper shape is lightweight and warm
  • Trapezoid box wall baffle chamber design
  • Proportionally assigned differential cut ensures optimum down lofting
  • Internal collar and hood draw cord
  • Close fitting neck baffle
  • 3/4 length YKK 5 coil main zip
  • Internal YKK 3 coil zipped stash pocket
  • Anti zip snag webbing tape
  • Angled foot box
  • Dry bag compression stuff sack included
  • Cotton storage sack included


Rab Neutrino Endurance 400 Sleeping Bag is a high quality down bag using 800 fill power European Goose down, with Pertex Endurance fabrics for great water resistance. The bag is a mummy taper shape so is streamlined and tapered to offer minimum weight and maximum warmth.

Trapezoid Box Wall Baffles

All aspects of Rab baffles are designed to allow the down to loft to the optimum amount for it's fill weight, fill power and the down to feature ratio. The baffle height has to be higher for more or higher quality down. Each baffle in all Rab's sleeping bags has a down weight assigned to it based on the size of the baffle and down quality, if too much down is put into a baffle, it will not loft to the optimum amount for trapping air and keeping you warm. The baffle offset which gives the baffles it's trapezoid shape has to be at the correct angle, too steep and the down will slip down the baffle surface, and if it's too shallow the extra material will add unnecessary weight and compress the down.

Nikwax Hydrophobic Down

Down continues to offer unparalleled warmth for weight and compressibility, but when down gets soaked its expansive air-trapping structure temporarily collapses. Nikwax Hydrophobic Down is specially formulated with Rab to enhance the water resistance of the down and provide the following benefits,

  • Down absorbs less water
  • Dries faster when damp
  • Retains loft
  • Fluorocarbon free treatment

Down Code Of Conduct

All Rab down is traceable under the European Down and Feather Association Codex, and all members are expected to follow their code on conduct as follows,

  • The birds should be raised to high welfare standards (farms are externally monitored)
  • Down is a by-product of a slaughterhouse or harvested during moulting periods
  • No use of illegally live plucked down
  • Have the origin of down and feathers entered into documentation system
Additional Information

Additional Information

Features N/A
Filling Down
Weight No